JP4437141B2 - オルメサルタンメドキソミルの精製法 - Google Patents
オルメサルタンメドキソミルの精製法 Download PDFInfo
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- JP4437141B2 JP4437141B2 JP2006538571A JP2006538571A JP4437141B2 JP 4437141 B2 JP4437141 B2 JP 4437141B2 JP 2006538571 A JP2006538571 A JP 2006538571A JP 2006538571 A JP2006538571 A JP 2006538571A JP 4437141 B2 JP4437141 B2 JP 4437141B2
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- JP
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- Prior art keywords
- olmesartan medoxomil
- acid
- solution
- water
- precipitate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- UQGKUQLKSCSZGY-UHFFFAOYSA-N Olmesartan medoxomil Chemical compound C=1C=C(C=2C(=CC=CC=2)C2=NNN=N2)C=CC=1CN1C(CCC)=NC(C(C)(C)O)=C1C(=O)OCC=1OC(=O)OC=1C UQGKUQLKSCSZGY-UHFFFAOYSA-N 0.000 title claims description 81
- 239000002051 C09CA08 - Olmesartan medoxomil Substances 0.000 title claims description 78
- 229960001199 olmesartan medoxomil Drugs 0.000 title claims description 78
- 238000000034 method Methods 0.000 title claims description 27
- 238000000746 purification Methods 0.000 title description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 48
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- 239000002253 acid Substances 0.000 claims description 39
- 239000002244 precipitate Substances 0.000 claims description 19
- 150000002576 ketones Chemical class 0.000 claims description 16
- LZTRCELOJRDYMQ-UHFFFAOYSA-N triphenylmethanol Chemical compound C=1C=CC=CC=1C(C=1C=CC=CC=1)(O)C1=CC=CC=C1 LZTRCELOJRDYMQ-UHFFFAOYSA-N 0.000 claims description 13
- IJOPLMOXIPGJIJ-UHFFFAOYSA-N (5-methyl-2-oxo-1,3-dioxol-4-yl)methyl 5-(2-hydroxypropan-2-yl)-2-propyl-3-[[4-[2-(1-trityltetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carboxylate Chemical compound C=1C=C(C=2C(=CC=CC=2)C=2N(N=NN=2)C(C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)C=CC=1CN1C(CCC)=NC(C(C)(C)O)=C1C(=O)OCC=1OC(=O)OC=1C IJOPLMOXIPGJIJ-UHFFFAOYSA-N 0.000 claims description 9
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- WBRMIXBFMUWHHX-UHFFFAOYSA-N 5-(2-hydroxypropan-2-yl)-2-propyl-3-[[4-[2-(1-trityltetrazol-5-yl)phenyl]phenyl]methyl]imidazole-4-carboxylic acid Chemical class CCCC1=NC(C(C)(C)O)=C(C(O)=O)N1CC1=CC=C(C=2C(=CC=CC=2)C=2N(N=NN=2)C(C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)C=C1 WBRMIXBFMUWHHX-UHFFFAOYSA-N 0.000 claims 1
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- 239000003981 vehicle Substances 0.000 description 1
- 229920001285 xanthan gum Polymers 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
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Description
本発明は、オルメサルタン メドキソミル(olmesartan medoxomil)の調製方法に関する。
オルメサルタン メドキソミルについての化学名称は、4−(1−ヒドロキシ−1−メチルエチル)−2−プロピル−1−[[2’−(1H−テトラゾール−5−イル)[1,1’−ビフェニル]−4−イル]メチル]−1H−イミダゾール−5−カルボン酸(5−メチル−2−オキソ−1,3−ジオキソール−4−イル)メチルエステル(Merck Index 13th ed.)である。
分子量は、558.58である。
オルメサルタン メドキソミルは、吸収の間、加水分解されるプロドラッグであり、そしてそれは、選択的AT1サブタイプアンギオテンシンII受容体アンタゴニストである。オルメサルタン メドキソミルは、アメリカ特許第5,616,599号(Yanagisawaなど.)により開示される。それは、ヒトにおける高血圧の処理のために、5mg、20mg及び40mgのフィルム−被覆された錠剤においてBENICAR(商標)として市販されている。
オルメサルタン メドキソミル(OLM−Mod)自体の合成は、次の通りに示される(Annu. Rep. Sankyo Res. Lab 2003, 55, 1-91を参照のこと):
1つの観点においては、本発明は、C3-6ケトン、好ましくはアセトン中、オルメサルタン メドキソミルの溶液を供給し;前記溶液に水を添加し;そして精製されたオルメサルタン メドキソミルを回収する段階を含んで成る、オルメサルタン メドキソミルの精製方法を提供する。前記方法はさらに、溶液を加熱する段階を包含することができる。前記方法はさらに、水の添加の後、溶液を冷却し、精製されたオルメサルタン メドキソミルを沈殿せしめる段階を包含することができる。
1つの態様においては、本発明は、C3-6ケトン中、オルメサルタン メドキソミルの溶液を供給し;前記溶液に水を添加し;そして精製されたオルメサルタン メドキソミルを回収する段階を含んで成る、オルメサルタン メドキソミルの精製方法を提供する。
好ましくは、前記C3-6ケトンは、アセトン、メチルエチルケトン、ジエチルケトン又はt−ブチルメチルケトンである。最も好ましくは、C3-6ケトンはアセトンである。
水の添加の後、前記方法は、沈殿を誘発するために溶液を冷却する段階をさらに包含することができる。前記溶液は、約30℃以下の温度、好ましくはほぼ室温に冷却され得る。 本明細書において使用される場合、用語“室温”とは、約20℃〜約30℃、好ましくは約20℃〜約25℃の温度を言及する。
溶液からトリフェニルカルビノールの分離は、当業界において知られているいずれかの手段、例えば濾過又は遠心分離により行われ得る。
反応の進行は、当業界において知られているいずれかの方法、例えばHPLC、GC、TLC、MNR及び質量分光法により検出され得る。
本発明の液体医薬組成物においては、活性成分及びいずれか他の固体賦形剤が、液体キャリヤー、例えば水、植物油、アルコール、ポリエチレングリコール、プロピレングリコール又はグリセリンに懸濁される。
保存剤及びキレート化剤、例えばアルコール、安息香酸ナトリウム、ブチル化されたヒドロキシルトルエン、ブチル化されたヒドロキシアニソール、及びエチレンジアミン四酢酸が、貯蔵安定性を改良するために摂取のための安全レベルで添加され得る。
本発明の用量形は、組成物、好ましくは本発明の粉末化された又は顆粒化された固体組成物を含むカプセル(ハード又はソフトシェルのいずれか)であり得る。シェルは、ゼラチンから製造され、そして任意には、可塑剤、例えばグリセリン及びソルビトール、及び不透明剤又は着色剤を含む。
乾燥顆粒化に変わるものとして、ブレンドされた組成物は、直接的圧縮技法を用いて、圧縮された用量形に直接的に圧縮され得る。直接的な圧縮は、顆粒を有さないより均等な錠剤を生成する。直接的な圧縮錠剤化のために特に適切である賦形剤は、微晶性セルロース、噴霧乾燥されたラクトース、リン酸二カルシウム・二水和物及びコロイド状シリカを包含する。
250mlの丸底フラスコを、MTT(10g)、アセトン/水(2/2体積)及び3当量のH2SO4により充填した。その組合せを、室温で約4〜6時間、攪拌した。トリフェニルカルビノール(TPC)を、水の添加により沈殿し、そして濾過した。NaHCO3を濾液に添加し、そしてその混合物を5℃に冷却し、そして1時間、攪拌した。粗オルメサルタン メドキソミルを、白色結晶として得た(90%の収率、OLM−酸:HPLCによれば0.89%面積)。
1Lのフラスコを、アセトンにより充填した。粗オルメサルタン メドキソミルを添加し、そしてその混合物を、1時間、加熱還流し、そして10体積に濃縮した。その溶液を室温に冷却し、そして水(10体積)を添加した。その混合物を室温で1時間、攪拌し、そして沈殿物を濾過し、そして10mmHg下で45℃で乾燥した(収率87%)。OLM−酸含有率は、HPLCにより測定される場合、0.04%であった。
1Lのフラスコを、4体積%の水を含むアセトンにより充填した。粗オルメサルタン メドキソミル(10g)を添加し、そしてその混合物を、1時間、加熱還流した。その溶液を、室温に冷却し、そして水(10体積)を添加した。その混合物を室温で1時間、攪拌し、そして沈殿物を濾過し、そして10mmHg下で45℃で乾燥した(収率90%)。OLM−酸含有率は、HPLCにより測定される場合、0.04%であった。
1Lのフラスコを、4体積%の水を含むアセトンにより充填した。粗オルメサルタン メドキソミル(10g)を添加し、そしてその混合物を、1時間、加熱還流した。その溶液を、室温に冷却し、そして水(10体積)を添加した。その混合物を2℃で1時間、攪拌し、そして沈殿物を濾過した。固形白色粉末を10mmHg下で45℃で乾燥した(収率95%)。OLM−酸含有率は、HPLCにより測定される場合、0.07%であった。
アセトン(7.5体積)中、オルメサルタン メドキソミルのスラリーを、1.5時間、加熱還流した。その混合物を、室温に冷却し、そして水(10体積)を添加した。その混合物を室温で1時間、攪拌し、そして沈殿物を濾過し、そして10mmHg下で45℃で乾燥した(収率91%)。OLM−酸含有率は、HPLCにより測定される場合、0.06%であった。
0.1%のオルメサルタン メドキソミル標準溶液を、50mlのメスフラスコにおいて、15mgのオルメサルタン メドキソミル標準を希釈剤により希釈することにより調製した。この溶液を、希釈剤により1/50及び次に1/20に希釈した。
標準溶液を、20分間の停止時間を伴って注入した。
サンプル溶液を注入し、グラジエントの最後までクロマトグラムを続けた。
カラム&充填: Discovery HS Cl8 50*4.6 mm , 3μ C.N 269250-U
溶離剤A: HClO4によりpH=2.5に調節された0.025MのNaClO4
溶離剤B: アセトニトリル
溶離剤のグラジエント: 時間(分) 溶離剤A(%) 溶離剤B(%)
0 75 25
15 55 45
25 35 65
30 35 65
停止時間: 30分
平衡化時間: 5分
流速: 1.5ml/分
検出器: 220nm
注入体積: 10μl
希釈剤: 50%溶離剤A:50%溶離剤B
カラム温度: 25℃
オートサンプラー温度: 5℃
Claims (5)
- オルメサルタン メドキソミルの精製方法であって、
a)トリチルオルメサルタン メドキソミルと酸とを、水混和性有機溶媒において接触せしめ、オルメサルタン メドキソミルの第1溶液及びトリフェニルカルビノールの沈殿物を得;
b)前記第1溶液からトリフェニルカルビノールの沈殿物を分離し;
c)前記第1溶液と塩基とを接触せしめ、オルメサルタン メドキソミルの沈殿物を得;
d)オルメサルタン メドキソミルの沈殿物を回収し;
e)前記オルメサルタン メドキソミルの沈殿物を、C3-6ケトンに溶解し、第2溶液を形成し;
f)前記第2溶液に水を添加し;そして
g)精製されたオルメサルタン メドキソミルを回収することを含んで成る方法。 - 前記第1溶液がさらに水を含んで成る請求項1記載の方法。
- 前記水混和性有機溶媒が、アセトン、アセトニトリル及びt−ブタノールから成る群から選択される請求項1記載の方法。
- 前記水混和性有機溶媒が、アセトンである請求項3記載の方法。
- 前記第1溶液がさらに水を含んで成り、そして前記第1溶液における水:アセトンの比が1:3〜3:1(体積)である請求項4記載の方法。
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JP2928982B2 (ja) * | 1994-10-27 | 1999-08-03 | 住化ファインケム株式会社 | 4’−ブロモメチル−2−シアノビフェニルの製造法 |
US5994348A (en) * | 1995-06-07 | 1999-11-30 | Sanofi | Pharmaceutical compositions containing irbesartan |
JP3671266B2 (ja) * | 1996-03-21 | 2005-07-13 | 東洋化成工業株式会社 | 5−置換テトラゾール類の製造方法 |
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US6271418B1 (en) * | 2000-02-22 | 2001-08-07 | Nippon Kayaku Co., Ltd. | Process for preparing (hetero) aromatic substituted benzene derivatives |
PT1336407E (pt) * | 2000-11-21 | 2006-07-31 | Sankyo Co | Composicao contendo um antagonista do receptor de angiotensina e um diuretico e sua utilizacao para o tratamento da hipertensao |
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CA2575177A1 (en) * | 2004-09-02 | 2006-03-16 | Teva Pharmaceutical Industries Ltd. | Purification of olmesartan medoxomil |
-
2005
- 2005-09-02 CA CA002575177A patent/CA2575177A1/en not_active Abandoned
- 2005-09-02 WO PCT/US2005/031482 patent/WO2006029057A1/en active Application Filing
- 2005-09-02 US US11/217,352 patent/US20060074117A1/en not_active Abandoned
- 2005-09-02 JP JP2006538571A patent/JP4437141B2/ja not_active Expired - Fee Related
- 2005-09-02 KR KR1020077002720A patent/KR100953878B1/ko not_active IP Right Cessation
- 2005-09-02 KR KR1020097019041A patent/KR20090102883A/ko not_active Application Discontinuation
- 2005-09-02 EP EP05796114A patent/EP1784398A1/en not_active Withdrawn
-
2007
- 2007-02-26 IL IL181550A patent/IL181550A0/en unknown
-
2009
- 2009-08-19 JP JP2009190136A patent/JP2009298804A/ja active Pending
- 2009-09-17 US US12/586,186 patent/US20100076200A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
JP2007509993A (ja) | 2007-04-19 |
KR100953878B1 (ko) | 2010-04-22 |
CA2575177A1 (en) | 2006-03-16 |
US20100076200A1 (en) | 2010-03-25 |
IL181550A0 (en) | 2007-07-04 |
EP1784398A1 (en) | 2007-05-16 |
KR20070030315A (ko) | 2007-03-15 |
WO2006029057A1 (en) | 2006-03-16 |
JP2009298804A (ja) | 2009-12-24 |
KR20090102883A (ko) | 2009-09-30 |
US20060074117A1 (en) | 2006-04-06 |
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