CN113698401B - β-榄香烯大环衍生物及其制备方法和应用 - Google Patents
β-榄香烯大环衍生物及其制备方法和应用 Download PDFInfo
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- CN113698401B CN113698401B CN202111074276.0A CN202111074276A CN113698401B CN 113698401 B CN113698401 B CN 113698401B CN 202111074276 A CN202111074276 A CN 202111074276A CN 113698401 B CN113698401 B CN 113698401B
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- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
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Abstract
本发明公开了一类β‑榄香烯大环衍生物及其制备方法和在制备抗肿瘤药物中的应用。β‑榄香烯大环衍生物的结构如式(I)~(III)任一所示:
Description
技术领域
本发明涉及β-榄香烯衍生物的制备技术领域,具体涉及β-榄香烯大环衍生物及其制备方法和应用。
背景技术
榄香烯是一类小分子挥发油类化合物,主要从温郁金的块根中提取获得。目前文献中所报道的榄香烯主要包括α-榄香烯、(±)-β-榄香烯、γ-榄香烯和δ-榄香烯,其中(-)-β-榄香烯是其发挥抗肿瘤作用的主要活性成分,具有广谱抗肿瘤活性,对多种癌症均有一定的疗效,如肝癌、乳腺癌、肺癌等。目前,以榄香烯为主要成分的多种制剂在临床上均取得了一定的抗癌疗效。
但是由于榄香烯极性小、水溶性差,生物口服利用度低,限制了其临床应用。因此,需要对榄香烯进行结构改造以获得水溶性好、生物口服利用度更高,生物活性优于榄香烯,且毒副作用小的榄香烯衍生物。
在过去的20~30年里,科研人员对β-榄香烯进行了大量的结构改造及活性研究工作。在不破坏榄香烯基本骨架及其双键的前提下,大部分的研究主要集中在β-榄香烯13-位点上的修饰,也有部分研究报道了在13和14位点上以相同取代基修饰,相对较少的报道涉及到单独对14位的β-榄香烯进行结构修饰。
天然大环化合物及其合成衍生物长期以来一直具有重要的临床应用价值。大环化合物本身具有很强的结构优势,可以提供多样化的功能和立体化学复杂性、具有良好的类药物特性(如良好的溶解性、亲脂性、膜穿透性以及代谢稳定性和理想的药代动力学和药效学特性等)。因此,将β-榄香烯的13-位和14-位通过特定的结构片段连接起来,形成一类结构新颖的大环化合物。这一类全新的分子实体保留了榄香烯原有的三个碳-碳双键部分(这三个碳-碳双键是榄香烯抗肿瘤活性的主要贡献元素),同时又在大环的链接部分引入了含1个到多个杂原子,进而提高了榄香烯的抗肿瘤活性,有望开发出抗肿瘤药物。
发明内容
本发明提供了一类β-榄香烯大环衍生物。
β-榄香烯大环衍生物,或其光学异构体、消旋体、单一对映异构体、可能的非对映异构体,或其药学上可接受的盐、前药、氘代衍生物、水合物、溶剂化物,所述β-榄香烯大环衍生物的结构如式(I)~(III)任一所示:
式(I)、(II)中:
式(III)中:
进一步地,所述β-榄香烯大环衍生物为如下结构所示的化合物1~55中的任一种:
本发明还提供了所述β-榄香烯大环衍生物的制备方法。
对于式(I)结构的β-榄香烯大环衍生物,可采用合成路线一:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将含有氮杂原子官能团的R1结构片段A-3通过选择性亲核取代反应连接到13位的β-榄香烯上,得中间体A-4;
(3)将R2与L1相连接的结构片段A-5通过选择性亲核取代反应连接到14位的β-榄香烯上,得中间体A-6;
(4)先后对β-榄香烯13、14位上的结构片段去保护,得中间体A-7;
(5)最后将R1、R2的两个去保护的末端进行分子内酰胺缩合成环,得式(I)所示的β-榄香烯大环衍生物。
对于式(I)结构的β-榄香烯大环衍生物,还可采用合成路线二:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将含有氮杂原子官能团的R1结构片段A-3通过选择性亲核取代反应连接到13位的β-榄香烯上,得中间体A-4;
(3)将中间体A-4进行Boc去保护得到中间体A-8;
(4)将R2与L1相连接的结构片段A-9通过酰胺缩合反应连接到β-榄香烯13位的R1末端,得中间体A-10;
(5)将中间体A-10进行Boc去保护得到中间体A-11;
(6)最后将β-榄香烯上13位的R2结构片段去保护,再将末端进行分子内亲核取代反应连接到14位的β-榄香烯上,得式(I)所示的β-榄香烯大环衍生物。
对于式(II)结构的β-榄香烯大环衍生物,可采用合成路线三:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将R2与L1相连接的结构片段A-5通过选择性亲核取代反应连接到13位的β-榄香烯上,得中间体A-12;
(3)将含有氮杂原子官能团的R1结构片段A-3通过选择性亲核取代反应连接到14位的β-榄香烯上,得中间体A-13;
(4)先后对β-榄香烯14、13位上的结构片段去保护,得中间体A-14;
(5)最后将R1、R2的两个去保护的末端进行分子内酰胺缩合成环,得式(II)所示的β-榄香烯大环衍生物。
对于式(III)结构的部分β-榄香烯大环衍生物,可采用合成路线四:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将含有氮杂原子官能团的R1结构片段A-3进行亲核取代反应连接到13、14位的β-榄香烯上,得中间体A-15;
(3)将中间体A-15进行Boc去保护得到中间体A-16;
(4)最后将L2结构片段A-17与R1末端连接成环,得式(III)所示的β-榄香烯大环衍生物;
对于式(III)结构的部分β-榄香烯大环衍生物,可采用合成路线五:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将含有氮杂原子官能团的R1结构片段A-3进行亲核取代反应连接到13、14位的β-榄香烯上,得中间体A-15;
(3)将中间体A-12进行Boc去保护得到中间体A-18;
(4)将中间体A-18两端和A-19发生亲核取代反应,得中间体A-20;
(5)将结构片段A-21与R1末端连接成环,得式(III)所示的β-榄香烯大环衍生物;
本发明式(I)、(II)、(III)所示化合物可通过如上的方法制得,然而该方法的条件,如反应物、溶剂、所用化合物的量、反应温度、反应所需时间等不限于上面的解释。本发明化合物还可以任选将在本说明书中描述的或本领域已知的各种合成方法组合起来而方便的制得,这样的组合可由本发明所属领域的技术人员容易地进行。
本发明各合成路线的步骤(1)均可采用现有技术,如公开号为CN110683932A中公开的方法。
本发明还提供了所述的β-榄香烯大环衍生物,或其光学异构体、消旋体、单一对映异构体、可能的非对映异构体,或其药学上可接受的盐、前药、氘代衍生物、水合物、溶剂化物在制备抗肿瘤药物中的应用。
本发明还提供了一种抗肿瘤药物,含有安全有效量的所述的β-榄香烯大环衍生物,或其光学异构体、消旋体、单一对映异构体、可能的非对映异构体,或其药学上可接受的盐、前药、氘代衍生物、水合物、溶剂化物。
所述抗肿瘤药物还可以包括药学上可以接受的载体。
所述应用和所述抗肿瘤药物中,所述肿瘤包括结肠癌、肺癌、前列腺癌、脑胶质瘤。
由于本发明化合物具有抑制各种肿瘤细胞株增殖的活性,因此,本发明化合物及其各种晶型、药学上可接受的无机或有机盐、水合物或溶剂合物,以及含有本发明化合物为主要活性成分的药物组合物可用于治疗、预防以及缓解各种疾病,包括各种癌症。
本发明的药物组合物包含安全有效量范围内的本发明化合物或其药理上可接受的盐及药理上可以接受的赋形剂或载体。其中“安全有效量”指的是:化合物的量足以明显改善病情,而不至于产生严重的副作用。通常,药物组合物含有1-2000mg本发明化合物/剂,更佳地,含有5-1000mg本发明化合物/剂。较佳地,所述的“一剂”为一个胶囊或药片。
“药学上可以接受的载体”指的是:一种或多种相容性固体或液体填料或凝胶物质,它们适合于人使用,而且必须有足够的纯度和足够低的毒性。“相容性”在此指的是组合物中各组分能和本发明的化合物以及它们之间相互掺和,而不明显降低化合物的药效。药学上可以接受的载体部分例子有纤维素及其衍生物(如羧甲基纤维素钠、乙基纤维素钠、纤维素乙酸酯等)、明胶、滑石、固体润滑剂(如硬脂酸、硬脂酸镁)、硫酸钙、植物油(如豆油、芝麻油、花生油、橄榄油等)、多元醇(如丙二醇、甘油、甘露醇、山梨醇等)、乳化剂(如)、润湿剂(如十二烷基硫酸钠)、着色剂、调味剂、稳定剂、抗氧化剂、防腐剂、无热原水等。
本发明化合物或药物组合物的施用方式没有特别限制,代表性的施用方式包括(但并不限于):口服、瘤内、直肠、肠胃外(静脉内、肌肉内或皮下)和局部给药。
用于口服给药的固体剂型包括胶囊剂、片剂、丸剂、散剂和颗粒剂。在这些固体剂型中,活性化合物与至少一种常规惰性赋形剂(或载体)混合,如柠檬酸钠或磷酸二钙,或与下述成分混合:(a)填料或增溶剂,如淀粉、乳糖、蔗糖、葡萄糖、甘露醇和硅酸;(b)粘合剂,如羟甲基纤维素、藻酸盐、明胶、聚乙烯基吡咯烷酮、蔗糖和阿拉伯胶;(c)保湿剂,如甘油;(d)崩解剂,如琼脂、碳酸钙、马铃薯淀粉或木薯淀粉、藻酸、某些复合硅酸盐和碳酸钠;(e)缓溶剂,如石蜡;(f)吸收加速剂,如季胺化合物;(g)润湿剂,如鲸蜡醇和单硬脂酸甘油酯;(h)吸附剂,如高岭土;(i)润滑剂,如滑石、硬脂酸钙、硬脂酸镁、固体聚乙二醇、十二烷基硫酸钠或其混合物。胶囊剂、片剂和丸剂中,剂型也可包含缓冲剂。
固体剂型,如片剂、糖丸、胶囊剂、丸剂和颗粒剂可采用包衣和壳材制备,如肠衣和其它本领域公知的材料。它们可包含不透明剂,并且这种组合物中活性化合物或化合物的释放可以延迟的方式在消化道内的某一部位中释放。可采用的包埋组分的实例是聚合物质和蜡类物质。必要时,活性化合物也可与上述赋形剂中的一种或多种形成微胶囊形式。
用于口服给药的液体剂型,包括药学上可接受的乳液、溶液、悬浮液、糖浆或酊剂。除了活性化合物外,液体剂型可包含本领域中常规采用的惰性稀释剂,如水或其它溶剂,增溶剂和乳化剂,如乙醇、异丙醇、碳酸乙酯、乙酸乙酯、丙二醇、1,3-丁二醇、二甲基甲酰胺以及油,特别是棉籽油、花生油、玉米胚油、橄榄油、蓖麻油和芝麻油或这些物质的混合物等。
除了这些惰性稀释剂外,组合物也可包含助剂,如润湿剂、乳化剂和悬浮剂、甜味剂、矫味剂和香料。
除了活性化合物外,悬浮液可包含悬浮剂,如乙氧基化异十八烷醇、聚氧乙烯山梨醇和脱水山梨醇酯、微晶纤维素、甲醇铝和琼脂或这些物质的混合物等。
用于肠胃外注射的组合物可包含生理上可接受的无菌含水或无水溶液、分散液、悬浮液或乳液和用于重新溶解成无菌的可注射溶液或分散液的无菌粉末。适宜的含水和非水载体、稀释剂、溶剂或赋形剂,包括水、乙醇、多元醇及其适宜的混合物。
用于局部给药的本发明化合物的剂型包括软膏剂、散剂、贴剂、喷射剂和吸入剂。活性成分在无菌条件下与生理上可接受的载体及任何防腐剂、缓冲剂,或必要时可能需要推进剂一起混合。
本发明化合物可以单独给药,或者与其他药学上可接受的化合物联合给药。
使用药物组合物时,是将安全有效量的本发明化合物适用于需要治疗的哺乳动物(如人),其中施用时剂量为药学上认为的有效给药剂量,对于60kg体重的人而言,日给药剂量通常为1~5000mg,优选5~2000mg。当然,具体剂量还应考虑给药途径、病人健康状况等因素,这些都是熟练医师技能范围之内的。
本发明与现有技术相比,主要优点包括:本发明提供了式(I)、(II)、(III)所示结构的β-榄香烯大环衍生物、含有式(I)、(II)、(III)化合物的药物组合物及水合物,以及这些化合物的同位素衍生物、手性异构体、变构体、不同的盐、前药和制剂等。本发明还提供了所述β-榄香烯大环衍生物的制备方法、用途,以及这些化合物对各种肿瘤细胞株的增殖的活性。本发明中的β-榄香烯大环衍生物有望成为抗肿瘤候选药物,治疗各种癌症,如肺癌、肝癌、结直肠癌、胃癌、前列腺癌、卵巢癌、乳腺癌或脑胶质瘤等。
具体实施方式
下面结合具体实施例,进一步阐述本发明。应理解,这些实施例仅用于说明本发明而不用于限制本发明的范围。下列实施例中未注明具体条件的操作方法,通常按照常规条件,或按照制造厂商所建议的条件。
实施例1:化合物1的制备
在室温条件下,向化合物1a(1042mg,3.84mmol)的无水N,N-二甲基甲酰胺(DMF)(8mL)溶液中加入1b(536mg,3.84mmol),待搅拌澄清后,依次加入N,N-二异丙基乙胺(DIPEA)(1092mg,8.45mmol)、2-(7-氮杂苯并三氮唑)-N,N,N',N'-四甲基脲六氟磷酸盐(HATU)(1460mg,3.84mmol),搅拌过夜。在减压条件下将DMF蒸除,加入冰水(40mL)淬灭反应,并用乙酸乙酯(15mL x 3)萃取。合并的有机相依次用水(10mL x 2)和饱和食盐水(10mLx 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(乙酸乙酯/石油醚/三乙胺(0.1%)体系洗脱)纯化,得到黄色油状化合物1c(1275mg,收率93%)。1H NMR(500MHz,CD3OD)δ4.04(d,J=13.2Hz,2H),3.67(s,3H),3.42(t,J=6.6Hz,2H),2.73(s,2H),2.53(t,J=6.6Hz,2H),2.15(t,J=7.4Hz,2H),1.69(d,J=11.5Hz,2H),1.66–1.56(m,2H),1.45(s,10H),1.28–1.19(m,2H),1.03(qd,J=12.7,4.3Hz,2H)。
在冰浴条件下,向化合物1c(433mg,1.22mmol)的甲醇(2mL)溶液中加入盐酸二氧六环(4M,3mL)溶液,搅拌约10min后撤掉冰浴,混合溶液在室温下继续搅拌过夜。反应液在减压条件下浓缩,得化合物1d的盐酸盐(355mg,1.22mmol),粗品不经纯化直接用于下一步反应。
在室温条件下,向化合物1d(355mg,1.22mmol)的无水DMF(5mL)溶液中,依次加入化合物1e(459mg,1.0mmol),碳酸铯(652mg,2.0mmol),逐渐升温至90℃搅拌约7h。在减压条件下将DMF蒸除,加入饱和碳酸氢钠水溶液(8mL),并用乙酸乙酯(5mL x 3)萃取。合并的有机相依次用饱和碳酸氢钠水溶液(6mL x 2)、水(6mL x 2)和饱和食盐水(6mL x 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(乙酸乙酯/石油醚/三乙胺(0.1%)体系洗脱)纯化,得到黄色油状化合物1f(337mg,收率50%)。1H NMR(500MHz,CDCl3)δ6.04(s,1H),5.80(dd,J=17.5,10.8Hz,1H),5.02(s,1H),4.91–4.82(m,3H),4.74(d,J=9.5Hz,2H),4.18(s,2H),3.70(s,3H),3.51(q,J=6.1Hz,2H),2.96(d,J=13.9Hz,1H),2.76(d,J=9.7Hz,2H),2.60(d,J=13.9Hz,1H),2.57–2.48(m,2H),2.18(dd,J=12.9,3.1Hz,1H),2.13(t,J=7.6Hz,2H),1.99–1.83(m,2H),1.69–1.55(m,8H),1.54–1.49(m,2H),1.47(s,19H),1.45–1.40(m,2H),1.23–1.19(m,3H),0.98(s,3H)。
在冰浴条件下,向化合物1f(264mg,0.39mmol)的甲醇(2mL)溶液中加入盐酸二氧六环(4M,3.5mL)溶液,搅拌约10min后撤掉冰浴,混合溶液在室温下继续搅拌过夜。反应液在减压条件下浓缩,得化合物1g的盐酸盐(199mg,0.39mmol),LCMS m/z 474.4[M+H]+。粗品不经纯化直接用于下一步反应。
在冰浴条件下,向化合物1g(120mg,0.24mmol)的甲醇(2mL)溶液中加入冷却的NaOH(1M,3.5mL)溶液,搅拌约10min后撤掉冰浴,混合溶液在室温下继续搅拌过夜。在减压条件下将甲醇蒸除后,于冰浴条件下,向反应液中边搅拌边缓慢滴加5%的HCl溶液,调节pH至7左右,然后在减压条件下将溶液浓缩,得化合物1h(108mg,0.39mmol),LCMS m/z 460.4[M+H]+。粗品不经纯化直接用于下一步反应。
在冰浴条件下,向化合物1h(78mg,0.17mmol)的无水DMF(8mL)溶液中,依次加入DIPEA(53mg,0.41mmol)、EDCI(179mg,0.94mmol)、1-羟基苯并三唑(HOBt)(60mg,0.44mmol),搅拌约5min,逐渐升至室温,并继续搅拌约8h。在减压条件下将DMF蒸除,向残余物中加入饱和碳酸氢钠水溶液(6mL),然后用乙酸乙酯(4mL x 3)萃取。合并的有机相,依次用饱和碳酸氢钠水溶液(5mL x 2)、水(5mL x 2)和饱和食盐水(5mL x 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(二氯甲烷/甲醇/三乙胺(0.1%)体系洗脱)纯化,得到黄色油状化合物1(29mg,收率37%)。1HNMR(500MHz,CDCl3)δ6.89–6.81(m,1H),5.74(dd,J=17.5,10.8Hz,1H),5.48(s,1H),4.98(s,1H),4.94(s,1H),4.91–4.83(m,3H),4.69(s,1H),4.21(dd,J=13.8,7.0Hz,1H),3.84(ddt,J=13.4,8.4,4.3Hz,1H),3.57(dd,J=13.9,3.0Hz,1H),3.22(tq,J=10.4,3.1Hz,1H),3.00(d,J=12.2Hz,1H),2.76(d,J=10.9Hz,1H),2.67(d,J=10.2Hz,1H),2.56–2.47(m,2H),2.43(dd,J=10.4,3.4Hz,1H),2.38–2.26(m,2H),2.17(ddd,J=14.7,9.3,5.8Hz,1H),2.04(t,J=10.9Hz,1H),1.97(dt,J=10.2,4.5Hz,1H),1.73–1.42(m,11H),1.38(dtd,J=13.6,10.2,6.3Hz,1H),1.32(d,J=12.9Hz,1H),1.11(ddd,J=16.4,12.0,5.7Hz,2H),1.02(s,3H),1.00–0.93(m,1H).LCMS m/z442.2[M+H]+。
实施例2:化合物2的制备
参照实施例1的合成方法,得到化合物2f(252mg,收率46%)。1H NMR(500MHz,CDCl3)δ6.13(t,J=4.9Hz,1H),5.79(dd,J=17.5,10.8Hz,1H),5.00(s,1H),4.95–4.81(m,4H),4.74(s,1H),3.68(s,3H),3.50(q,J=6.1Hz,2H),3.39(s,4H),2.97(d,J=13.9Hz,1H),2.90(q,J=13.3Hz,2H),2.81–2.71(m,2H),2.59(d,J=13.9Hz,1H),2.53(t,J=6.0Hz,2H),2.31(s,4H),2.20(dd,J=12.7,3.1Hz,1H),2.14–2.09(m,2H),2.07(d,J=12.1Hz,1H),1.89(t,J=11.3Hz,1H),1.56(dq,J=42.1,13.9,13.0Hz,9H),1.44(s,9H),1.40(d,J=12.7Hz,1H),1.30–1.05(m,6H),0.98(s,3H).LCMS m/z643.0[M+H]+。
参照实施例1的合成方法,依次将化合物2f(245mg,0.38mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物2(97mg,收率76%)。1H NMR(400MHz,CDCl3)δ6.30–6.20(m,1H),5.76(dd,J=17.5,10.8Hz,1H),4.93–4.87(m,3H),4.86(d,J=1.2Hz,1H),4.84–4.82(m,1H),4.70(d,J=1.6Hz,1H),3.96(d,J=13.1Hz,1H),3.81–3.67(m,1H),3.49(dt,J=11.9,3.2Hz,1H),3.31(tdd,J=12.5,8.1,4.2Hz,2H),3.15–2.94(m,3H),2.87(d,J=12.6Hz,1H),2.76(dd,J=28.1,11.1Hz,2H),2.66–2.50(m,3H),2.49–2.33(m,3H),2.33–2.19(m,3H),2.14–2.05(m,2H),2.03–2.00(m,1H),1.95(td,J=11.8,2.1Hz,1H),1.50(tdt,J=24.6,16.8,11.7Hz,11H),1.23–1.02(m,3H),1.00(s,3H),0.83(qd,J=12.0,3.9Hz,1H).LCMS m/z 511.0[M+H]+。
实施例3:化合物3的制备
参照实施例1的合成方法,第一步得到化合物3c(1602mg,收率85%)。1H NMR(500MHz,CDCl3)δ5.59(s,1H),3.65(s,3H),3.24(q,J=7.0Hz,2H),2.72(t,J=11.0Hz,2H),2.30(t,J=7.4Hz,2H),2.19(tt,J=11.6,3.7Hz,1H),1.78(d,J=12.6Hz,2H),1.66–1.58(m,4H),1.50(dt,J=14.8,7.4Hz,3H),1.44(s,9H),1.39–1.28(m,3H)。
第二步制得化合物3d的盐酸盐(763mg,2.61mmol),LCMS m/z 257.2[M+H]+。粗品不经纯化直接用于下一步反应。
第三步得到化合物3f(142mg,收率66%)。1H NMR(500MHz,CDCl3)δ5.80(dd,J=17.5,10.8Hz,1H),5.58(t,J=5.1Hz,1H),5.01(s,1H),4.92(d,J=7.3Hz,2H),4.90–4.81(m,2H),4.75(s,1H),3.65(s,3H),3.40(t,J=5.1Hz,4H),3.24(q,J=6.7Hz,2H),3.02(d,J=13.8Hz,1H),2.96–2.87(m,2H),2.87–2.78(m,2H),2.61(d,J=13.9Hz,1H),2.38–2.25(m,6H),2.21(dd,J=12.9,3.2Hz,1H),2.11–1.92(m,5H),1.81–1.57(m,9H),1.49(td,J=13.3,12.2,8.9Hz,5H),1.44(s,9H),1.41(t,J=2.6Hz,1H),1.40–1.29(m,3H).LCMS m/z643.4[M+H]+。
参照实施例1的合成方法,依次将化合物3f(190mg,0.30mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物3(30mg,收率20%)。1H NMR(500MHz,CDCl3)δ5.78(dd,J=17.5,10.8Hz,1H),5.54(dd,J=8.0,4.0Hz,1H),4.96–4.90(m,3H),4.89–4.81(m,2H),4.11(d,J=13.0Hz,1H),3.69–3.59(m,2H),3.33(ddd,J=13.0,10.0,3.2Hz,1H),3.24–3.18(m,1H),3.00(d,J=12.4Hz,1H),2.98–2.91(m,1H),2.89–2.71(m,4H),2.61(tt,J=12.1,3.5Hz,2H),2.57–2.48(m,3H),2.41(d,J=12.5Hz,1H),2.35–2.22(m,3H),2.20(d,J=5.2Hz,1H),2.17(dd,J=10.4,3.0Hz,1H),2.10(ddt,J=10.9,8.1,3.5Hz,1H),2.02–1.88(m,4H),1.76–1.35(m,13H),0.99(s,3H).LCMS m/z 511.4[M+H]+。
实施例4:化合物4的制备
参照实施例1的合成方法,得到化合物4f(170mg,收率50%)。1H NMR(500MHz,CDCl3)δ5.79(dd,J=17.5,10.8Hz,1H),5.62(t,J=5.8Hz,1H),5.00(s,1H),4.89–4.81(m,3H),4.76–4.69(m,2H),4.17(dt,J=3.7,1.8Hz,2H),3.64(s,3H),3.23(q,J=6.7Hz,2H),3.00(d,J=13.8Hz,1H),2.87–2.77(m,2H),2.59(d,J=13.8Hz,1H),2.29(t,J=7.4Hz,2H),2.21(dd,J=12.7,3.3Hz,1H),2.06–1.98(m,1H),1.98–1.88(m,3H),1.82–1.57(m,10H),1.49(t,J=7.5Hz,4H),1.46(s,18H),1.43–1.38(m,2H),0.97(s,3H).LCMS m/z674.4[M+H]+。
参照实施例1的合成方法,依次将化合物4f(150mg,0.22mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物4(36mg,收率37%)。1H NMR(500MHz,CDCl3)δ6.74(s,1H),5.74(dd,J=17.5,10.8Hz,1H),5.32(dd,J=14.2,5.7Hz,1H),4.93–4.83(m,5H),4.72(s,1H),4.40(dd,J=13.9,8.8Hz,1H),3.64(dq,J=12.6,6.9,5.9Hz,1H),3.41(dd,J=14.0,2.9Hz,1H),3.12(ddd,J=13.7,10.5,3.6Hz,1H),2.96(d,J=12.1Hz,1H),2.88(d,J=12.1Hz,1H),2.80(d,J=10.9Hz,1H),2.57(d,J=12.2Hz,1H),2.50(dd,J=12.8,2.6Hz,1H),2.31–2.14(m,3H),2.14–2.06(m,1H),1.97(dq,J=19.9,12.5,9.2Hz,2H),1.82(dt,J=10.4,5.6Hz,2H),1.75–1.68(m,2H),1.65–1.39(m,11H),1.34(d,J=12.9Hz,1H),1.03(s,3H).LCMS m/z 442.2[M+H]+。
实施例5:化合物5的制备
参照实施例1的合成方法,得到化合物5f(256mg,收率66.8%)。1H NMR(400MHz,CDCl3)δ5.81(dd,J=17.5,10.8Hz,1H),5.03(s,1H),4.93(s,1H),4.91–4.81(m,3H),4.77(s,1H),3.67(s,3H),3.57(s,2H),3.31–3.12(m,4H),3.10–2.90(m,3H),2.90–2.81(m,2H),2.77(s,2H),2.60(d,J=13.8Hz,1H),2.41(d,J=8.6Hz,3H),2.32(t,J=7.4Hz,2H),2.24(d,J=7.6Hz,1H),1.95(s,2H),1.84–1.75(m,3H),1.73–1.67(m,2H),1.63(dd,J=15.0,7.4Hz,4H),1.59–1.48(m,5H),1.46(s,10H),1.43(s,1H),1.41–1.27(m,4H),0.98(s,3H).LCMS m/z 669.4[M+H]+。
参照实施例1的合成方法,依次将化合物5f(230mg,0.34mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物5(20mg,收率11%)。1H NMR(500MHz,CDCl3)δ6.91–6.72(m,1H),6.00(dd,J=17.6,10.7Hz,1H),4.88(ddd,J=35.6,19.7,9.3Hz,5H),4.72(d,J=11.5Hz,1H),4.05(dd,J=11.5,9.4Hz,1H),3.97–3.82(m,1H),3.82–3.71(m,1H),3.41(d,J=13.1Hz,1H),3.32–3.21(m,2H),3.18–3.04(m,1H),3.04–2.94(m,1H),2.94–2.57(m,8H),2.57–2.30(m,4H),2.30–2.12(m,3H),2.02(dd,J=9.3,3.3Hz,2H),1.98–1.92(m,1H),1.92–1.71(m,3H),1.66–1.48(m,6H),1.47–1.38(m,3H),1.27(d,J=15.0Hz,3H),0.95(d,J=3.0Hz,3H).LCMS m/z 537.4[M+H]+。
实施例6:化合物6的制备
参照实施例1的合成方法,第一步得到化合物6c(1784mg,收率90%)。1H NMR(500MHz,CDCl3)δ6.04(t,J=5.7Hz,1H),3.98(t,J=8.5Hz,2H),3.63(d,J=1.0Hz,3H),3.23(q,J=6.7Hz,2H),3.15(ddd,J=14.8,8.5,6.2Hz,1H),2.28(t,J=7.3Hz,2H),1.60(p,J=7.3Hz,2H),1.49(p,J=7.3Hz,3H),1.39(d,J=1.1Hz,10H),1.33(d,J=8.3Hz,1H),1.25–1.20(m,1H).LCMS m/z 351.2[M+Na]+。
第二步制得化合物6d的盐酸盐(885mg,3.35mmol),LCMS m/z 229.2[M+H]+。粗品不经纯化直接用于下一步反应。
第三步得到化合物6f(321mg,收率45%)。1H NMR(500MHz,CDCl3)δ6.24(t,J=5.5Hz,1H),5.83–5.67(m,1H),4.98(s,1H),4.90(s,1H),4.88–4.83(m,2H),4.74(d,J=4.1Hz,2H),4.19–4.15(m,2H),3.65(s,3H),3.38(t,J=7.4Hz,1H),3.31(t,J=7.4Hz,1H),3.26(q,J=6.8Hz,2H),3.21(t,J=6.6Hz,2H),3.05–2.98(m,2H),2.88(d,J=14.1Hz,1H),2.31(t,J=7.4Hz,2H),1.99(dd,J=12.5,3.3Hz,1H),1.94(d,J=8.0Hz,1H),1.67–1.62(m,3H),1.61–1.57(m,1H),1.53(dt,J=15.1,7.3Hz,4H),1.47(s,19H),1.41–1.30(m,3H),0.98(s,3H).LCMS m/z 646.4[M+H]+。
参照实施例1的合成方法,依次将化合物6f(280mg,0.43mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物6(32mg,收率18%)。1H NMR(500MHz,CDCl3)δ7.51(s,1H),5.81(dd,J=17.5,10.7Hz,1H),5.41(t,J=5.6Hz,1H),5.00(s,1H),4.95(s,1H),4.92–4.85(m,3H),4.71(s,1H),3.77(dd,J=13.9,5.2Hz,1H),3.61(dtd,J=13.6,7.3,4.8Hz,1H),3.45–3.39(m,2H),3.21(dt,J=7.3,2.4Hz,1H),3.15(t,J=7.4Hz,1H),3.13–3.07(m,1H),3.04(t,J=7.6Hz,1H),2.84(ddd,J=7.7,5.5,2.2Hz,1H),2.58(d,J=8.5Hz,1H),2.56(d,J=3.6Hz,1H),2.29(dd,J=12.9,3.1Hz,1H),2.20(t,J=6.2Hz,2H),1.93–1.90(m,1H),1.74(ddd,J=13.3,6.7,3.2Hz,1H),1.71–1.64(m,2H),1.64–1.59(m,3H),1.45(d,J=7.3Hz,2H),1.39(dtd,J=14.7,6.4,5.2,3.5Hz,2H),1.05(t,J=7.2Hz,2H),0.94(s,3H).LCMS m/z 414.2[M+H]+。
实施例7:化合物7的制备
参照实施例1的合成方法,第一步得到化合物7c(440mg,收率97%)。1H NMR(500MHz,CDCl3)δ6.04(s,1H),4.00(s,1H),3.62(s,3H),3.23(q,J=6.8Hz,2H),2.61(s,2H),2.32(t,J=7.2Hz,2H),2.10(t,J=7.6Hz,2H),1.78(p,J=7.0Hz,2H),1.65–1.54(m,4H),1.40(s,9H),1.32(dtt,J=14.5,6.9,3.8Hz,1H),1.24–1.14(m,3H),1.01(qd,J=12.6,4.2Hz,2H).LCMS m/z 393.2[M+Na]+。
第二步制得化合物7d的盐酸盐(364mg,1.19mmol),LCMS m/z 271.2[M+H]+。粗品不经纯化直接用于下一步反应。
第三步得到化合物7f(333mg,收率40%)。1H NMR(500MHz,CDCl3)δ5.79(dd,J=17.5,10.8Hz,1H),5.71(s,1H),5.01(s,1H),4.90–4.81(m,3H),4.73(d,J=8.4Hz,2H),4.17(s,2H),3.67(s,3H),3.28(q,J=6.5Hz,2H),2.96(d,J=14.0Hz,1H),2.75(d,J=9.7Hz,2H),2.60(d,J=14.0Hz,1H),2.36(t,J=7.1Hz,2H),2.17(dd,J=12.6,2.8Hz,1H),2.12(t,J=7.6Hz,2H),1.94(t,J=10.9Hz,1H),1.91–1.85(m,1H),1.85–1.80(m,2H),1.61(q,J=12.5,9.9Hz,8H),1.52(s,2H),1.47(s,20H),1.44–1.38(m,2H),1.13(dd,J=20.8,8.9Hz,2H),0.98(s,3H)。
参照实施例1的合成方法,依次将化合物7f(317mg,0.46mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物7(79.5mg,收率38%)。1H NMR(500MHz,CDCl3)δ6.72(s,1H),5.74(dd,J=17.5,10.8Hz,1H),4.95(s,1H),4.91(s,1H),4.90–4.88(m,2H),4.87–4.83(m,2H),4.72(s,1H),3.98(dd,J=14.0,6.2Hz,1H),3.79(dd,J=14.1,5.0Hz,1H),3.45–3.33(m,1H),3.28(ddd,J=13.6,10.6,5.0Hz,1H),3.01(d,J=12.3Hz,1H),2.78(d,J=10.3Hz,1H),2.71(d,J=10.6Hz,1H),2.53(d,J=12.4Hz,1H),2.47(dd,J=12.7,2.9Hz,1H),2.29(t,J=7.0Hz,2H),2.25(t,J=6.8Hz,1H),2.14(dt,J=14.5,7.3Hz,1H),2.09–1.90(m,3H),1.85(ddq,J=9.6,4.7,2.1Hz,2H),1.69–1.59(m,5H),1.58–1.49(m,4H),1.46(dd,J=12.2,5.3Hz,2H),1.43–1.34(m,3H),1.05(d,J=7.2Hz,1H),1.01(s,3H).LCMS m/z 456.4[M+H]+。
实施例8:化合物8的制备
参照实施例1的合成方法,第一步得到化合物8c(141mg,收率88%)。1H NMR(500MHz,CDCl3)δ5.51(s,1H),4.16–3.99(m,2H),3.67(s,3H),3.25(q,J=6.7Hz,2H),2.71(t,J=11.8Hz,2H),2.31(t,J=7.3Hz,2H),2.06(d,J=7.1Hz,2H),1.98(ddq,J=14.9,7.7,4.0Hz,1H),1.65(dq,J=15.0,9.1,7.4Hz,6H),1.51(dt,J=14.8,7.2Hz,2H),1.44(s,9H),1.11(qd,J=12.6,4.1Hz,2H).LCMS m/z 393.2[M+Na]+。
在冰浴条件下,向化合物8c(136mg,0.37mmol)的甲醇(2mL)溶液中加入冷却的NaOH(1M,2mL)溶液,搅拌约10min后撤掉冰浴,混合溶液在室温下继续搅拌约4h。在减压条件下将甲醇蒸除后,于冰浴条件下,向反应液中边搅拌边缓慢滴加HCl溶液(1M),调节pH至2左右,用乙酸乙酯(8mL x 3)萃取。合并的有机相依次用水(6mL x 2)和饱和食盐水(6mL x2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,得无色透明液体8d(111.7mg,收率85%),LCMS m/z 355.2[M-H]-。粗品不经纯化直接用于下一步反应。
在冰浴条件下,向化合物1e(796mg,1.76mmol)的甲醇(5mL)溶液中加入盐酸二氧六环(4M,8mL)溶液,搅拌约10min后撤掉冰浴,混合溶液在室温下继续搅拌过夜。反应液在减压条件下浓缩,向水相边搅拌边加入冷却的碳酸钾水溶液(10%),调节pH至12左右,再用乙酸乙酯(10mL x 3)萃取。合并的有机相依次用饱和碳酸氢钠水溶液(10mL x3)、水(10mLx 3)和饱和食盐水(10mL x 3)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,得到无色透明液体8e(402.4mg。收率90%)。粗品不经纯化直接用于下一步反应。
在室温条件下,向化合物8d(51mg,0.2mmol)的无水DMF(2mL)溶液中,依次加入化合物8e(72mg,0.2mmol),DIPEA(78.4mg,0.6mmol),搅拌约5min后,再加入EDCI(101mg,0.5mmol),HOBt(36mg,0.3mmol)搅拌约6h。在减压条件下将DMF蒸除,加入冰水(5mL)淬灭,并用乙酸乙酯(4mL x 3)萃取。合并的有机相依次用水(5mL x 2)和饱和食盐水(5mL x 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(二氯甲烷/甲醇体系洗脱)纯化,得到化合物8f(29mg,收率34%)。1H NMR(500MHz,CDCl3)δ5.87(t,J=5.4Hz,1H),5.75(dd,J=17.3,10.9Hz,2H),4.94–4.92(m,1H),4.92–4.87(m,3H),4.86(s,1H),4.07(d,J=11.6Hz,2H),3.95(d,J=11.6Hz,1H),3.93–3.88(m,1H),3.83(dd,J=15.9,5.7Hz,1H),3.23(q,J=6.8Hz,2H),2.69(s,2H),2.26(dd,J=11.3,4.7Hz,1H),2.21(t,J=7.4Hz,2H),2.05(d,J=7.1Hz,2H),1.97(ddq,J=14.7,7.6,4.2Hz,4H),1.66(dt,J=14.7,7.5Hz,6H),1.62–1.58(m,2H),1.57–1.44(m,3H),1.43(s,11H),1.11(ddt,J=19.9,11.9,5.9Hz,3H),0.96(s,3H).LCMS m/z 592.2[M+H]+。
参照实施例1的合成方法,制得化合物8g的盐酸盐(18mg,0.034mmol),LCMS m/z492.2[M+H]+。粗品不经纯化直接用于下一步反应。
在室温条件下,向化合物8g(18mg,0.034mmol)的无水DMF(4mL)溶液中,加入碳酸铯(17.6mg,0.054mmol),逐渐升温至90℃搅拌过夜。在减压条件下将DMF蒸除,加入冰水(4mL)淬灭,并用乙酸乙酯(3mL x 3)萃取。合并的有机相依次用水(5mL x 2)和饱和食盐水(5mL x 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(二氯甲烷/甲醇/三乙胺(0.1%)体系洗脱)纯化,得到化合物8(10.8mg,收率70%)。1H NMR(500MHz,CDCl3)δ6.21(s,1H),5.79(dd,J=17.5,10.8Hz,1H),5.64(s,1H),4.94(d,J=6.6Hz,2H),4.92–4.83(m,3H),4.76(s,1H),3.96–3.81(m,2H),3.44(ddd,J=18.5,13.2,7.3Hz,1H),3.23–3.13(m,1H),3.05(d,J=12.4Hz,1H),2.77(d,J=8.9Hz,2H),2.55(d,J=12.3Hz,1H),2.37–2.31(m,1H),2.31–2.21(m,2H),2.21–2.12(m,1H),2.11–2.03(m,1H),2.03–1.94(m,2H),1.94–1.87(m,1H),1.69–1.56(m,8H),1.55–1.45(m,5H),1.44–1.32(m,4H),1.03(s,3H).LCMS m/z 456.4[M+H]+。
实施例9:化合物9的制备
参照实施例8的合成方法,得化合物9b(462.5mg,收率98.6%),粗品不经纯化直接用于下一步反应。
在冰浴条件下,向化合物9b(81mg,0.22mmol)的无水二氯甲烷(2.5mL)溶液中,加入DIPEA(62mg,0.48mmol),化合物9c(43mg,0.22mmol),逐渐升至室温下搅拌过夜。反应液在减压条件下浓缩,所得的粗品经硅胶柱层析(二氯甲烷/甲醇/氨水(0.1%)体系洗脱)纯化,得到白色固体化合物9(43mg,收率40%)。1H NMR(400MHz,CDCl3)δ5.74(dd,J=17.4,10.9Hz,1H),4.95(d,J=5.6Hz,2H),4.93–4.87(m,2H),4.86(s,1H),4.81(s,1H),3.97(d,J=12.9Hz,1H),3.70–3.42(m,4H),3.34(ddd,J=11.8,7.5,2.8Hz,1H),3.19(dt,J=12.2,6.3Hz,2H),3.09(d,J=12.4Hz,1H),3.01(d,J=12.6Hz,1H),2.86(d,J=12.6Hz,1H),2.58(t,J=12.7Hz,2H),2.53–2.43(m,2H),2.42–2.21(m,9H),2.11(ddd,J=15.1,9.1,3.4Hz,1H),1.98(t,J=9.3Hz,1H),1.70(dq,J=13.4,7.0Hz,1H),1.54(dtd,J=35.8,13.2,8.8Hz,9H),1.35(q,J=6.7Hz,2H),1.02(s,3H).LCMS m/z 497[M+H]+。
实施例10:化合物10的制备
参照实施例9的合成方法,得到白色固体化合物10(57mg,收率54%)。1H NMR(400MHz,CDCl3)δ5.74(dd,J=17.8,10.5Hz,1H),4.96(d,J=6.7Hz,2H),4.93(s,1H),4.89(dd,J=5.8,1.2Hz,1H),4.86(s,1H),4.84(d,J=1.5Hz,1H),3.75–3.55(m,2H),3.53–3.35(m,5H),3.34–3.23(m,1H),3.06(d,J=12.8Hz,1H),2.97(s,2H),2.71(d,J=13.0Hz,1H),2.53–2.11(m,14H),2.00(d,J=8.2Hz,1H),1.60(dddd,J=51.2,23.7,11.6,6.0Hz,9H),1.01(s,3H)。
实施例11:化合物11的制备
参照实施例9的合成方法,得到化合物11(29mg,收率13%)。1H NMR(500MHz,CDCl3)δ5.78(dd,J=17.5,10.8Hz,1H),5.05(s,1H),4.93(d,J=5.9Hz,2H),4.90–4.82(m,2H),4.79(d,J=1.7Hz,1H),3.58(s,4H),3.51–3.40(m,4H),3.03(d,J=14.0Hz,1H),2.91(q,J=13.4Hz,2H),2.64(d,J=14.0Hz,1H),2.39(dt,J=7.1,3.5Hz,5H),2.37–2.33(m,3H),2.29–2.22(m,2H),2.17(dd,J=12.8,2.8Hz,1H),2.05(dd,J=20.7,7.2Hz,3H),1.96–1.88(m,2H),1.60(t,J=12.5Hz,2H),1.53–1.38(m,4H),0.98(s,3H).LCMS m/z 469.4[M+H]+。
实施例12:化合物12的制备
参照实施例9的合成方法,得到泡沫状固体化合物12(9mg,收率9%)。1H NMR(500MHz,CDCl3)δ5.79(dd,J=17.5,10.8Hz,1H),5.03(d,J=9.2Hz,1H),4.94(s,1H),4.93–4.82(m,3H),4.79(s,1H),3.54(dd,J=31.4,12.9Hz,8H),3.06(t,J=11.6Hz,1H),3.00–2.82(m,2H),2.66(s,3H),2.61(d,J=12.4Hz,1H),2.50–2.15(m,9H),2.07(t,J=11.0Hz,1H),1.91(s,1H),1.70–1.38(m,6H),0.98(s,3H)。
实施例13:化合物13的制备
参照实施例9的合成方法,第一步得黄色油状化合物13b(181.5mg,收率73%),粗品不经纯化直接用于下一步反应。
第二步得到白色固体化合物13(20mg,收率27%)。1H NMR(400MHz,CDCl3)δ5.86(dd,J=17.5,10.7Hz,1H),5.77–5.67(m,1H),5.56–5.45(m,1H),5.06(s,1H),5.01–4.99(m,1H),4.96(dd,J=10.8,1.3Hz,1H),4.93–4.86(m,2H),4.74–4.71(m,1H),4.26–4.14(m,2H),3.79(dd,J=14.4,4.6Hz,1H),3.28(dd,J=13.7,2.8Hz,1H),2.40–2.29(m,1H),2.29–2.09(m,4H),2.05–1.84(m,3H),1.80–1.71(m,2H),1.57–1.53(m,2H),1.50(dd,J=5.3,3.6Hz,2H),1.43–1.35(m,2H),0.99(s,3H)。
实施例14:化合物14的制备
参照实施例9的合成方法,得到白色固体化合物14(20mg,收率9%)。1H NMR(500MHz,CDCl3)δ5.75(dd,J=17.4,10.9Hz,2H),5.42(t,J=6.1Hz,1H),5.07(s,1H),4.94(s,1H),4.92(d,J=3.3Hz,1H),4.91–4.88(m,1H),4.87(s,1H),4.80(s,1H),3.84(dd,J=14.4,5.4Hz,1H),3.78(dd,J=13.2,7.2Hz,1H),3.63–3.58(m,1H),2.56(dt,J=14.9,5.7Hz,1H),2.45(ddd,J=14.9,9.4,5.1Hz,1H),2.37–2.31(m,2H),2.10–2.05(m,1H),2.03–1.95(m,2H),1.93(d,J=11.0Hz,1H),1.85(ddd,J=14.8,9.1,5.7Hz,1H),1.62–1.45(m,6H),1.03(s,3H)。
实施例15:化合物15的制备
在冰浴条件下,向化合物13b(110mg,0.47mmol)的无水二氯甲烷(3mL)溶液中,缓慢加入化合物15c(117mg,1.00mmol),逐渐升至室温下搅拌过夜。加入冰水(5mL)淬灭反应,再加入饱和碳酸氢钠水溶液(5mL),并用二氯甲烷(4mL x 3)萃取。合并的有机相依次用饱和碳酸氢钠水溶液(5mL x 2)、水(5mL x 2)和饱和食盐水(5mL x 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(二氯甲烷/甲醇/三乙胺(0.1%)体系洗脱)纯化,得化合物15d(60mg,收率33%),LCMS m/z 387.2[M+H]+。
在冰浴条件下,向化合物15d(60mg,0.155mmol)的无水乙腈(2mL)溶液中,加入化合物15e(14mg,0.155mmol)的无水乙腈(4mL)溶液,最后加入Cs2CO3(17.6mg,0.054mmol),逐渐升温至40℃搅拌过夜。反应液在减压条件下浓缩,加入冰水(2mL)淬灭,再加入饱和碳酸氢钠水溶液调节pH至9左右,并用乙酸乙酯(4mL x 3)萃取。合并的有机相依次用饱和碳酸氢钠水溶液(5mL x 2)、水(5mL x 2)和饱和食盐水(5mL x 2)洗涤,然后用无水硫酸钠干燥。干燥剂经过滤除去,滤液在减压条件下浓缩,所得的粗品经硅胶柱层析(二氯甲烷/甲醇/三乙胺(0.1%)体系洗脱)纯化,得到化合物15(24.6mg,收率39%)。1H NMR(500MHz,CDCl3)δ7.25(d,J=7.8Hz,1H),7.12(s,1H),5.84(dd,J=17.4,10.8Hz,1H),5.15(s,1H),5.08(s,1H),4.99–4.88(m,3H),4.83(s,1H),4.15(dd,J=13.4,8.2Hz,1H),4.06(dd,J=14.0,7.1Hz,1H),3.78(dd,J=14.0,4.6Hz,1H),3.47(dd,J=13.6,3.7Hz,1H),3.04(qd,J=16.8,5.4Hz,4H),2.56(dddd,J=24.2,14.7,8.7,4.7Hz,4H),2.35(s,6H),2.01(dd,J=12.9,3.1Hz,1H),1.91(td,J=14.8,11.8,3.2Hz,1H),1.62(q,J=12.9Hz,1H),1.48(dtd,J=16.5,11.5,10.8,4.7Hz,4H),1.06(t,J=7.1Hz,1H),1.03(s,3H).LCMS m/z 403.2[M+H]+。
实施例16:化合物16的制备
在室温条件下,向化合物16a(510mg,9mmol)的无水甲醇(8mL)溶液中,加入化合物16b(1923mg,22mmol),逐渐升温至50℃搅拌2天。反应液在减压条件下浓缩,得到化合物16c(1.8g,收率88%)。1H NMR(500MHz,CDCl3)δ3.65(s,6H),2.91(t,J=7.3Hz,4H),2.51(t,J=7.3Hz,4H),1.71(tt,J=6.7,3.8Hz,1H),0.48–0.36(m,4H).LCMS m/z 230.2[M+H]+。
参照实施例1的合成方法,得化合物16d(1474mg,7.3mmol),LCMS m/z 200.0[M-H]-。粗品不经纯化直接用于下一步反应。
参照实施例1的合成方法,从化合物16d和9b合成化合物16(30mg,黄色油状物,收率29%)。1H NMR(500MHz,CDCl3)δ5.75(dd,J=17.5,10.8Hz,1H),4.99(s,1H),4.95(s,1H),4.93(s,1H),4.90(dd,J=9.5,1.1Hz,1H),4.88–4.86(m,1H),4.83(d,J=1.3Hz,1H),4.02(d,J=13.0Hz,1H),3.75(d,J=13.6Hz,1H),3.57–3.47(m,2H),3.37–3.20(m,2H),3.19–3.09(m,3H),3.06(d,J=12.6Hz,1H),2.99–2.91(m,2H),2.91–2.83(m,2H),2.83–2.75(m,1H),2.65(d,J=12.7Hz,1H),2.52(tdq,J=22.3,15.6,8.1Hz,7H),2.44–2.38(m,1H),2.38–2.30(m,2H),2.30–2.22(m,2H),2.09(ddd,J=14.8,9.9,3.5Hz,1H),2.04–1.97(m,1H),1.76(dq,J=6.7,3.4Hz,1H),1.67–1.61(m,1H),1.58–1.41(m,5H),1.02(s,3H),0.48(dt,J=5.7,2.7Hz,2H),0.44–0.34(m,2H).LCMS m/z 538.0[M+H]+。
实施例17:化合物17的制备
参照实施例1的合成方法,得到白色固体化合物17(27mg,收率17%)。1H NMR(500MHz,CDCl3)δ6.04(d,J=6.2Hz,1H),5.83(dd,J=17.5,10.8Hz,1H),5.75–5.61(m,1H),5.06(s,1H),4.98–4.86(m,3H),4.84(s,1H),4.75(s,1H),4.53(dd,J=14.5,9.1Hz,1H),4.11(dd,J=13.6,7.4Hz,1H),3.47(ddd,J=12.8,8.7,3.8Hz,2H),3.14(ddd,J=12.8,10.4,2.7Hz,1H),3.04(ddd,J=12.8,9.1,3.4Hz,1H),2.71(ddd,J=13.0,6.7,3.5Hz,1H),2.65–2.54(m,2H),2.45(ddd,J=14.8,9.1,3.6Hz,1H),2.32(dddd,J=17.8,14.6,6.5,2.7Hz,2H),2.02(s,1H),1.94(dt,J=13.3,3.6Hz,3H),1.62(td,J=6.6,3.3Hz,1H),1.59–1.52(m,2H),1.49(dd,J=9.6,5.7Hz,2H),1.01(s,3H),0.55(td,J=6.4,1.7Hz,1H),0.48(dd,J=10.4,6.6Hz,1H),0.39(d,J=3.8Hz,2H).LCMS m/z 400.0[M+H]+。
实施例18:化合物18的制备
参照实施例1的合成方法,得到化合物18f(194mg,收率42%)。1H NMR(500MHz,CDCl3)δ6.31(t,J=5.8Hz,1H),5.74(dd,J=18.0,10.3Hz,1H),5.00(s,1H),4.94–4.91(m,1H),4.90(d,J=3.6Hz,2H),4.88–4.85(m,1H),4.76(s,1H),3.71(q,J=7.0Hz,1H),3.65(s,3H),3.45(t,J=8.4Hz,1H),3.39(dt,J=13.9,6.2Hz,5H),3.29–3.22(m,4H),3.11–3.04(m,2H),2.96–2.85(m,3H),2.31(dd,J=9.3,5.5Hz,6H),2.08(t,J=11.0Hz,1H),2.01(dd,J=12.7,3.2Hz,1H),1.68–1.46(m,7H),1.44(s,9H),1.40–1.29(m,3H),1.23(t,J=7.0Hz,1H),0.98(s,3H).LCMS m/z 615.0[M+H]+。
参照实施例1的合成方法,依次将化合物18f(190mg,0.31mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物18(53mg,收率35.5%)。1H NMR(500MHz,CDCl3)δ5.91(t,J=6.1Hz,1H),5.75(dd,J=17.4,10.9Hz,1H),5.03(d,J=1.5Hz,1H),4.97–4.90(m,2H),4.88(dd,J=8.9,1.4Hz,1H),4.85(q,J=1.4Hz,1H),4.76(d,J=1.6Hz,1H),3.76(s,1H),3.45(dt,J=14.0,6.2Hz,3H),3.40–3.18(m,5H),3.18–3.00(m,4H),2.89(dd,J=17.3,12.6Hz,2H),2.51(dt,J=15.1,3.4Hz,1H),2.46–2.30(m,4H),2.23(ddd,J=11.3,7.8,3.2Hz,1H),2.18(dd,J=13.0,3.1Hz,1H),2.11–1.91(m,4H),1.79–1.65(m,2H),1.60(ddd,J=13.3,6.9,3.2Hz,2H),1.55–1.38(m,5H),1.00(s,3H).LCMS m/z 483.4[M+H]+。
实施例19:化合物19的制备
参照实施例1的合成方法,第一步得到黄色固体化合物19c(1170mg,收率86%)。1HNMR(500MHz,CDCl3)δ6.09(s,1H),4.05(s,2H),3.69(s,3H),3.50(q,J=6.0Hz,2H),2.64(s,2H),2.57–2.46(m,2H),2.17(t,J=7.8Hz,2H),1.69–1.50(m,4H),1.43(s,9H),1.38(ddq,J=11.3,7.5,3.7Hz,1H),1.07(qd,J=12.5,4.4Hz,2H).LCMS m/z 343.2[M+H]+。
第二步制得化合物19d的盐酸盐(300mg,1.08mmol),LCMS m/z 243.2[M+H]+。粗品不经纯化直接用于下一步反应。
第三步得到化合物19f(287mg,收率40%)。1H NMR(500MHz,CDCl3)δ6.13(t,J=5.6Hz,1H),5.77(dd,J=17.5,10.8Hz,1H),4.99(s,1H),4.87–4.80(m,3H),4.71(d,J=7.6Hz,2H),4.15(s,2H),3.67(s,3H),3.48(q,J=6.0Hz,2H),2.94(d,J=13.9Hz,1H),2.74(d,J=9.3Hz,2H),2.57(d,J=14.0Hz,1H),2.51(t,J=6.0Hz,2H),2.20–2.11(m,3H),2.01(s,1H),1.92(t,J=11.1Hz,1H),1.84(d,J=11.5Hz,1H),1.56(ddd,J=34.3,18.6,7.8Hz,10H),1.45(s,19H),1.42–1.37(m,2H),0.95(s,3H).LCMS m/z 660.4[M+H]+。
参照实施例1的合成方法,依次将化合物19f(200mg,0.30mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物19(30mg,收率23%)。1H NMR(500MHz,CDCl3)δ6.52(t,J=6.2Hz,1H),5.75(dd,J=17.5,10.8Hz,1H),5.40–5.30(m,1H),5.00(d,J=1.1Hz,1H),4.97(d,J=1.1Hz,1H),4.91(d,J=1.7Hz,1H),4.88(dd,J=11.1,1.5Hz,1H),4.86–4.83(m,1H),4.68(d,J=1.6Hz,1H),3.96(dd,J=13.5,6.4Hz,1H),3.84(dd,J=13.5,5.0Hz,1H),3.63(dtd,J=14.1,7.2,2.5Hz,1H),3.42(dddd,J=13.8,8.0,5.3,2.4Hz,1H),3.17(d,J=12.8Hz,1H),2.75–2.62(m,2H),2.55(d,J=12.8Hz,1H),2.51–2.41(m,2H),2.34–2.24(m,1H),2.24–2.19(m,1H),2.12(ddd,J=15.0,9.1,2.2Hz,1H),1.98(dddd,J=19.0,10.0,4.1,2.2Hz,3H),1.66–1.59(m,2H),1.57–1.37(m,10H),1.04(dd,J=12.0,3.7Hz,1H),0.98(s,3H)。
实施例20:化合物20的制备
参照实施例1的合成方法,得到化合物20f(242mg,收率75%(减去回收原料2e))。1H NMR(500MHz,CDCl3)δ6.17(t,J=6.3Hz,1H),5.79(dd,J=17.5,10.8Hz,1H),5.01(s,1H),4.95–4.89(m,2H),4.89–4.81(m,2H),4.75(s,1H),3.69(s,3H),3.50(q,J=6.1Hz,2H),3.40(d,J=5.1Hz,4H),3.05–2.96(m,1H),2.95–2.85(m,2H),2.79(s,2H),2.60(d,J=13.7Hz,1H),2.53(t,J=6.0Hz,2H),2.31(t,J=5.2Hz,4H),2.20(dd,J=12.7,3.2Hz,1H),2.14(t,J=7.9Hz,2H),2.12–2.04(m,2H),1.98–1.83(m,1H),1.74–1.46(m,10H),1.44(s,9H),1.43–1.38(m,1H),1.19(s,2H),0.98(s,3H).LCMS m/z 629.4[M+H]+。
参照实施例1的合成方法,依次将化合物20f(150mg,0.22mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物20(74mg,收率49%)。1H NMR(500MHz,CDCl3)δ6.15(t,J=6.1Hz,1H),5.76(dd,J=17.5,10.8Hz,1H),4.97–4.90(m,3H),4.89–4.82(m,2H),4.76(s,1H),3.78(d,J=13.0Hz,1H),3.72–3.60(m,1H),3.51–3.31(m,3H),3.20(ddd,J=12.4,8.7,3.5Hz,1H),3.04(t,J=14.1Hz,2H),2.88–2.68(m,3H),2.58(ddt,J=11.7,8.9,3.3Hz,3H),2.52–2.43(m,2H),2.36(ddd,J=11.5,8.5,3.4Hz,1H),2.32–1.87(m,7H),1.75–1.32(m,12H),1.16(ddt,J=11.1,7.2,3.8Hz,1H),1.00(s,3H).LCMS m/z 497.4[M+H]+。
实施例21:化合物21的制备
参照实施例1的合成方法,第一步得到黄色固体化合物21c(195mg,收率94%)。1HNMR(500MHz,CDCl3)δ6.21–6.08(m,1H),4.00(s,2H),3.61(s,3H),3.29–3.15(m,2H),2.60(s,2H),2.30(td,J=7.2,1.4Hz,2H),2.13(t,J=7.8Hz,2H),1.77(pd,J=7.1,1.5Hz,2H),1.55(dd,J=36.2,10.2Hz,4H),1.38(d,J=1.5Hz,9H),1.34(dt,J=11.0,3.6Hz,1H),1.02(qd,J=12.3,4.3Hz,2H).LCMS m/z 379.2[M+Na]+。
第二步制得化合物21d的盐酸盐(136mg,0.53mmol),LCMS m/z 257.2[M+H]+。粗品不经纯化直接用于下一步反应。
第三步得到化合物21f(135mg,收率73%(减去回收原料2e))。1H NMR(500MHz,CDCl3)δ6.00(t,J=5.8Hz,1H),5.79(dd,J=17.5,10.9Hz,1H),5.02(s,1H),4.91(d,J=5.2Hz,2H),4.88–4.82(m,2H),4.76(s,1H),3.66(s,3H),3.44–3.31(m,4H),3.26(q,J=6.6Hz,2H),3.03(d,J=13.1Hz,1H),2.90(s,2H),2.80(s,2H),2.61(d,J=12.6Hz,1H),2.35(t,J=7.2Hz,3H),2.31(s,3H),2.23(d,J=12.1Hz,1H),2.17–2.04(m,3H),1.94(s,1H),1.82(p,J=7.1Hz,2H),1.69(s,1H),1.64–1.45(m,10H),1.43(s,9H),1.42–1.37(m,2H),1.30(s,1H),0.97(s,3H).LCMS m/z 643.4[M+H]+。
参照实施例1的合成方法,依次将化合物21f(130mg,0.20mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物21(30mg,收率29%)。1H NMR(500MHz,CDCl3)δ6.29(dd,J=6.5,3.4Hz,1H),5.84–5.69(m,1H),4.96(d,J=1.4Hz,1H),4.95–4.91(m,2H),4.90–4.82(m,2H),4.75(d,J=1.8Hz,1H),3.90(d,J=13.0Hz,1H),3.50(dt,J=12.6,4.1Hz,1H),3.47–3.40(m,1H),3.37(ddd,J=12.4,9.1,3.5Hz,1H),3.32–3.21(m,1H),3.21–3.13(m,1H),3.09–2.98(m,2H),2.80(d,J=12.5Hz,1H),2.75(d,J=11.6Hz,1H),2.68(d,J=11.5Hz,1H),2.64–2.56(m,1H),2.51(dd,J=12.1,4.4Hz,2H),2.47–2.37(m,2H),2.33(dddd,J=16.6,9.2,6.0,3.3Hz,2H),2.19–1.95(m,6H),1.88–1.82(m,1H),1.74–1.39(m,11H),1.30(s,1H),1.20(d,J=10.5Hz,2H),1.03(s,3H).LCMS m/z 511.4[M+H]+。
实施例22:化合物22的制备
参照实施例1的合成方法,得到化合物22f(320mg,收率65%)。1H NMR(500MHz,CDCl3)δ6.05(s,1H),5.80(dd,J=17.5,10.7Hz,1H),5.02(s,1H),4.92(d,J=1.7Hz,1H),4.90–4.81(m,3H),4.76(s,1H),3.67(s,3H),3.63–3.49(m,2H),3.27(q,J=6.6Hz,2H),3.22–3.09(m,2H),3.07–2.89(m,3H),2.88–2.69(m,4H),2.67–2.45(m,3H),2.44–2.29(m,4H),2.18(dt,J=16.0,9.1Hz,3H),2.07(s,3H),1.92(s,1H),1.83(p,J=7.1Hz,2H),1.74–1.47(m,10H),1.45(s,9H),1.43–1.37(m,2H),0.97(s,3H).LCMS m/z 669.4[M+H]+。
参照实施例1的合成方法,依次将化合物22f(200mg,0.22mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物22(63.5mg,收率41%)。1H NMR(500MHz,CDCl3)δ7.65(s,1H),5.81(dt,J=17.6,11.1Hz,1H),5.06–4.66(m,6H),4.08(ddd,J=30.5,12.1,9.1Hz,1H),3.76(ddd,J=17.4,10.8,8.7Hz,1H),3.24(tdd,J=17.4,11.9,7.3Hz,2H),3.08(dd,J=13.6,5.5Hz,1H),3.01(s,1H),3.00–2.81(m,3H),2.80–2.47(m,7H),2.37(td,J=9.9,8.8,5.5Hz,3H),2.29–2.02(m,6H),2.02–
1.86(m,2H),1.78–1.69(m,2H),1.68–1.60(m,3H),1.58–1.35(m,7H),1.20(s,1H),1.17–1.08(m,1H),0.98(s,3H).LCMS m/z 537.4[M+H]+。
实施例23:化合物23的制备
参照实施例1的合成方法,第一步得到化合物23c(546mg,收率86%)。1H NMR(500MHz,CDCl3)δ6.26(s,1H),3.99(s,2H),3.60(s,3H),3.21(q,J=6.9Hz,2H),2.63(t,J=12.6Hz,2H),2.29(t,J=7.2Hz,2H),2.01(d,J=7.1Hz,2H),1.90(ddh,J=11.0,7.2,3.5Hz,1H),1.76(p,J=7.1Hz,2H),1.60(d,J=12.6Hz,2H),1.37(s,9H),1.04(qd,J=12.4,4.2Hz,2H).LCMS m/z 365.2[M+Na]+。
第二步制得化合物23d的盐酸盐(150mg,0.62mmol),LCMS m/z 243.2[M+H]+。粗品不经纯化直接用于下一步反应。
第三步得到化合物23f(152mg,收率40%)。1H NMR(500MHz,CDCl3)δ6.06(t,J=5.9Hz,1H),5.80(dd,J=17.5,10.8Hz,1H),5.04(s,1H),4.92(d,J=1.6Hz,1H),4.91(s,1H),4.87(dd,J=10.1,1.4Hz,1H),4.84(q,J=1.4Hz,1H),4.80(s,1H),3.66(s,3H),3.40(s,4H),3.27(q,J=6.6Hz,2H),3.04(d,J=13.0Hz,1H),2.92(s,2H),2.84(s,2H),2.65(d,J=13.6Hz,1H),2.35(t,J=7.3Hz,4H),2.32–2.21(m,3H),2.17–2.04(m,3H),2.01(d,J=7.2Hz,1H),1.82(p,J=7.1Hz,4H),1.70–1.46(m,7H),1.44(s,10H),1.43–1.38(m,2H),0.98(s,3H).LCMS m/z 629.4[M+H]+。
参照实施例1的合成方法,依次将化合物23f(150mg,0.21mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物23(50mg,收率42%)。1H NMR(500MHz,CDCl3)δ6.24(d,J=6.7Hz,1H),5.80(dd,J=17.5,10.8Hz,1H),4.96(s,1H),4.92–4.81(m,4H),4.71(s,1H),4.20(d,J=13.0Hz,1H),3.63–3.50(m,2H),3.23(d,J=11.7Hz,1H),3.14–3.04(m,3H),2.99(q,J=12.9Hz,2H),2.83–2.73(m,2H),2.70(d,J=11.6Hz,2H),2.54–2.38(m,3H),2.38–2.32(m,1H),2.31–2.19(m,4H),2.15(td,J=11.3,2.8Hz,1H),2.07(td,J=11.2,3.4Hz,2H),2.00–1.92(m,1H),1.86–1.75(m,1H),1.71(ddt,J=13.3,8.8,4.4Hz,1H),1.58(ddd,J=36.2,20.2,7.3Hz,6H),1.50–1.37(m,4H),0.99(s,3H).LCMS m/z 497.4[M+H]+。
实施例24:化合物24的制备
参照实施例1的合成方法,得到化合物24f(215mg,收率53%)。1H NMR(500MHz,CDCl3)δ6.94(s,1H),5.82(dd,J=17.5,10.7Hz,1H),5.02(s,1H),4.90(s,1H),4.89–4.80(m,3H),4.73(d,J=38.1Hz,1H),3.76–3.67(m,1H),3.65(s,3H),3.53(d,J=28.9Hz,1H),3.26(q,J=6.6Hz,2H),3.11(d,J=24.7Hz,3H),3.00(s,2H),2.76(s,4H),2.66–2.38(m,4H),2.35(t,J=7.4Hz,3H),2.28(s,1H),2.23–1.94(m,5H),1.82(p,J=7.2Hz,4H),1.71–1.50(m,6H),1.45(s,10H),1.43–1.38(m,2H),0.96(s,3H).LCMS m/z 655.4[M+H]+。
参照实施例1的合成方法,依次将化合物24f(190mg,0.29mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物24(39mg,收率32%)。1H NMR(500MHz,CDCl3)δ7.00(d,J=6.1Hz,1H),5.98(dd,J=17.6,10.8Hz,1H),4.93(s,1H),4.90–4.79(m,4H),4.64(s,1H),4.09(dd,J=11.8,8.9Hz,1H),3.82–3.74(m,1H),3.46–3.37(m,1H),3.34(d,J=13.1Hz,1H),3.26–3.15(m,2H),3.12–3.05(m,1H),3.05–3.01(m,1H),2.90(d,J=12.3Hz,1H),2.84(dddd,J=13.9,10.9,7.2,4.4Hz,1H),2.71(dq,J=9.5,5.9,3.8Hz,2H),2.68–2.62(m,2H),2.62–2.49(m,3H),2.42(d,J=13.3Hz,1H),2.33–2.25(m,2H),2.19(dd,J=9.6,5.9Hz,1H),2.14–2.04(m,3H),1.96(t,J=11.3Hz,1H),1.82–1.75(m,2H),1.70–1.29(m,12H),0.91(s,3H).LCMS m/z 523.4[M+H]+。
实施例25:化合物25的制备
参照实施例1的合成方法,第一步得到化合物25f(299mg,收率47%)。1H NMR(500MHz,CDCl3)δ6.41(t,J=5.8Hz,1H),5.76(dd,J=17.2,11.0Hz,1H),4.93(s,1H),4.91(d,J=1.1Hz,1H),4.90–4.88(m,2H),4.87(s,1H),4.15–4.03(m,1H),3.95(d,J=11.7Hz,1H),3.65(s,3H),3.39(t,J=7.6Hz,2H),3.31–3.20(m,4H),3.05(d,J=5.6Hz,3H),2.35(s,1H),2.30(t,J=7.4Hz,2H),2.28–2.23(m,1H),2.01(tt,J=11.7,3.8Hz,1H),1.68–1.56(m,4H),1.56–1.48(m,4H),1.48–1.39(m,2H),1.38–1.30(m,2H),0.96(s,3H).LCMS m/z 465.0[M+H]+。
第二步得到化合物25h(249mg,收率64%)。1H NMR(500MHz,CDCl3)δ6.30(t,J=5.8Hz,1H),5.78(dd,J=17.5,10.8Hz,1H),5.04(s,1H),4.92–4.83(m,4H),4.78(s,1H),3.65(s,3H),3.48(dt,J=12.2,5.3Hz,2H),3.45–3.34(m,4H),3.28(dq,J=26.6,6.2Hz,4H),3.13(q,J=6.5Hz,1H),3.09(s,2H),3.01(d,J=13.8Hz,1H),2.64(d,J=13.9Hz,1H),2.35(s,1H),2.30(t,J=7.4Hz,3H),2.23(d,J=5.6Hz,1H),2.18(dd,J=12.8,3.3Hz,1H),2.01(d,J=5.2Hz,1H),1.96(ddt,J=11.8,8.8,3.3Hz,1H),1.63(td,J=13.7,12.3,6.1Hz,3H),1.56–1.46(m,5H),1.44(d,J=1.5Hz,9H),1.43–1.30(m,4H),0.98(s,3H).LCMSm/z 615.4[M+H]+。
参照实施例1的合成方法,依次将化合物25h(122mg,0.20mmol)进行Boc去保护、酯水解、酰胺缩合反应,最终得到白色固体化合物25(40mg,收率42%)。1H NMR(500MHz,CDCl3)δ6.13(t,J=5.4Hz,1H),5.75(dd,J=17.5,10.8Hz,1H),4.98–4.80(m,6H),3.70–3.51(m,3H),3.46–3.28(m,6H),3.24–3.16(m,1H),3.16–3.03(m,4H),2.66(d,J=12.4Hz,1H),2.54–2.43(m,2H),2.39(ddd,J=18.7,10.3,4.5Hz,3H),2.34–2.20(m,2H),2.12–2.01(m,1H),1.76(dt,J=13.9,7.1Hz,1H),1.64(dt,J=13.8,6.8Hz,2H),1.61–1.39(m,7H),1.35–1.28(m,2H),1.01(s,3H).LCMS m/z 483.0[M+H]+。
实施例26:肿瘤细胞增殖抑制实验
体外抗肿瘤活性评价
1.实验设备与试剂
1.1仪器
生物安全柜(上海百基生物科技有限公司)、恒温二氧化碳培养箱(THERMO)、酶联免疫分析仪(Spark)、倒置显微镜(Nikon)、移液枪一套(eppendorf)和离心机(beckmancoulter)。
1.2试剂
DMEM(浙江森瑞生物科技有限公司)、RPMI 1640(浙江森瑞生物科技有限公司)、McCoy’S 5A(浙江森瑞生物科技有限公司)、Fatal Bovine Serum(BI)、PBS(浙江森瑞生物科技有限公司)、Trypsin(浙江森瑞生物科技有限公司)、DMSO(Coolaber)和CCK-8(Coolaber)。
1.3细胞株
人结肠癌细胞(HCT116)、人肺癌细胞(A549)、人前列腺癌细胞PC-3、人脑胶质瘤细胞U87MG和人脑胶质瘤细胞U251。
2.实验方法
1)取对数生长期的受试细胞,经胰酶消化、计数后,以5×104/mL的浓度接种于96空培养板中,每孔100μL(每孔5×103个细胞),于37℃,5%CO2培养箱中培养24h;
2)用10%FBS/DMEM或RPMI 1640或McCoy’S 5A完全培养基稀释待测药物至不同浓度。实验组更换含不同浓度被测样品的培养液,对照组更换含等体积溶剂(DMSO)的培养液,每组设立3个平行孔,于37℃,5%CO2培养箱中继续培养48h;
其中,PC-3细胞、A549细胞使用RPMI 1640完全培养基,U87MG细胞、U251细胞使用DMEM完全培养基,HCT116细胞使用McCoy’S 5A完全培养基。
3)每孔加入CCK-8溶液10μL,于37℃继续培养1-4h,酶标仪在490nm处测定每个孔的吸光度值(OD值);
4)用以下公式计算存活率和抑制率
细胞存活率=[(As-Ab)/(Ac-Ab)]×100%
抑制率=[(Ac-As)/(Ac-Ab)]×100%
应用GraphPad Prism 7.0软件,使用非线性回归模型绘制S型剂量-存活率曲线并计算IC50值。
As:实验孔(含有细胞的培养基、CCK-8、待测药物)的吸光度
Ac:对照孔(含有细胞的培养基、CCK-8、溶媒(DMSO)的吸光度
Ab:空白孔(不含细胞和待测药物的培养基、CCK-8)的吸光度
3.实验结果
按上述实验方法测定了目标化合物对五种肿瘤细胞的增殖抑制作用。结果如表1所示。
表1目标化合物对肿瘤细胞抑制剂率的影响
50μM化合物作用于肿瘤细胞48h。
结论:相比于阳性对照β-榄香烯,化合物1~3、5~7、9、10、12、16、18均有一定的进步性。其中,化合物9和18的抗肿瘤细胞增殖作用明显强于阳性对照β-榄香烯。
选取化合物9和18按上述实验方法测定IC50值,结果如表2所示。
表2目标化合物对肿瘤细胞的半数抑制浓度
不同浓度的化合物作用于肿瘤细胞48h。
结果显示,相比于β-榄香烯,目标化合物9和18,对PC-3、HCT116、A549、U87MG、和U251肿瘤细胞抑制活性提高了近10倍。
此外应理解,在阅读了本发明的上述描述内容之后,本领域技术人员可以对本发明作各种改动或修改,这些等价形式同样落于本申请所附权利要求书所限定的范围。
Claims (10)
3.一种β-榄香烯大环衍生物的制备方法,其特征在于,采用合成路线一:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将含有氮杂原子官能团的R1结构片段A-3通过选择性亲核取代反应连接到13位的β-榄香烯上,得中间体A-4;
(3)将R2与L1相连接的结构片段A-5通过选择性亲核取代反应连接到14位的β-榄香烯上,得中间体A-6;
(4)先后对β-榄香烯13、14位上的结构片段去保护,得中间体A-7;
(5)最后将R1、R2的两个去保护的末端进行分子内酰胺缩合成环,得式(I)所示的β-榄香烯大环衍生物;
4.一种β-榄香烯大环衍生物的制备方法,其特征在于,采用合成路线二:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将含有氮杂原子官能团的R1结构片段A-3通过选择性亲核取代反应连接到13位的β-榄香烯上,得中间体A-4;
(3)将中间体A-4进行Boc去保护得到中间体A-8;
(4)将R2与L1相连接的结构片段A-9通过酰胺缩合反应连接到β-榄香烯13位的R1末端,得中间体A-10;
(5)将中间体A-10进行Boc去保护得到中间体A-11;
(6)最后将β-榄香烯上13位的R2结构片段去保护,再将末端进行分子内亲核取代反应连接到14位的β-榄香烯上,得式(I)所示的β-榄香烯大环衍生物;
5.一种β-榄香烯大环衍生物的制备方法,其特征在于,采用合成路线三:
具体包括步骤:
(1)将β-榄香烯A-1进行烯丙位双氯代反应得中间体A-2;
(2)将R2与L1相连接的结构片段A-5通过选择性亲核取代反应连接到13位的β-榄香烯上,得中间体A-12;
(3)将含有氮杂原子官能团的R1结构片段A-3通过选择性亲核取代反应连接到14位的β-榄香烯上,得中间体A-13;
(4)先后对β-榄香烯14、13位上的结构片段去保护,得中间体A-14;
(5)最后将R1、R2的两个去保护的末端进行分子内酰胺缩合成环,得式(II)所示的β-榄香烯大环衍生物;
8.根据权利要求1或2所述的β-榄香烯大环衍生物或其药学上可接受的盐在制备抗肿瘤药物中的应用。
9.根据权利要求8所述的应用,其特征在于,所述肿瘤为结肠癌、肺癌、前列腺癌、脑胶质瘤。
10.一种抗肿瘤药物,其特征在于,含有安全有效量的权利要求1或2所述的β-榄香烯大环衍生物或其药学上可接受的盐。
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