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NO143346B - PROCEDURE FOR THE PREPARATION OF THYMOSIN ALFA / 1 - Google Patents

PROCEDURE FOR THE PREPARATION OF THYMOSIN ALFA / 1 Download PDF

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Publication number
NO143346B
NO143346B NO773681A NO773681A NO143346B NO 143346 B NO143346 B NO 143346B NO 773681 A NO773681 A NO 773681A NO 773681 A NO773681 A NO 773681A NO 143346 B NO143346 B NO 143346B
Authority
NO
Norway
Prior art keywords
preparation
acetate
methyl
dione
procedure
Prior art date
Application number
NO773681A
Other languages
Norwegian (no)
Other versions
NO773681L (en
NO143346C (en
Inventor
Allan L Goldstein
Teresa L K Low
Chun-Yen Lai
Su-Sun Wang
Original Assignee
Hoffmann La Roche
Univ Texas
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US05/766,638 external-priority patent/US4079127A/en
Application filed by Hoffmann La Roche, Univ Texas filed Critical Hoffmann La Roche
Publication of NO773681L publication Critical patent/NO773681L/en
Publication of NO143346B publication Critical patent/NO143346B/en
Publication of NO143346C publication Critical patent/NO143346C/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07KPEPTIDES
    • C07K14/00Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof
    • C07K14/435Peptides having more than 20 amino acids; Gastrins; Somatostatins; Melanotropins; Derivatives thereof from animals; from humans
    • C07K14/575Hormones
    • C07K14/57581Thymosin; Related peptides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61KPREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K38/00Medicinal preparations containing peptides

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biophysics (AREA)
  • Medicinal Chemistry (AREA)
  • Zoology (AREA)
  • Biochemistry (AREA)
  • Toxicology (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Molecular Biology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Endocrinology (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Peptides Or Proteins (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)

Abstract

Fremgangsmåte ved fremstilling av thymosin a.Process for the preparation of thymosin a.

Description

Fremgangsmåte til fremstilling av 16a-metyl-pregnan-3a- Process for the production of 16a-methyl-pregnan-3a-

Foreliggende oppfinnelse angår en fremgangsmåte til fremstilling av en ny steroidforbindelse, nemlig 16a-metyl-preg-nan-3ct-ol-ll,20-3-acetat under anvendelse av 16-pregnen-3a-ol-ll,20-dioner-3-acetat som utgangsmateriale. The present invention relates to a method for the production of a new steroid compound, namely 16a-methyl-pregnan-3ct-ol-11,20-3-acetate using 16-pregnen-3a-ol-11,20-diones-3 -acetate as starting material.

Denne nye forbindelse har sterk anestetisk virkning og er videre fordelaktig som mellomprodukt ved fremstilling av 16a-me-tyl-l,4-pregnadien-17a-ol-3,20-dion og med denne beslektede forbindelser. Sistnevnte forbindelser har en ytterst sterk anti-in-f lammatorisk virkning. This new compound has a strong anesthetic effect and is furthermore advantageous as an intermediate in the preparation of 16a-methyl-1,4-pregnadien-17a-ol-3,20-dione and related compounds. The latter compounds have an extremely strong anti-inflammatory effect.

Den forbindelse som fåes ved frem-gangsmåten ifølge foreliggende oppfinnelse, har strukturformelen: The compound obtained by the method according to the present invention has the structural formula:

Det karakteristiske trekk ved frem-gangsmåten ifølge oppfinnelsen er at man omsetter 16-pregnen-3a-ol-ll,20-dion-3-acetat med metylmagnesiumjodid i nær-være av kuproklorid, hydrolyserer produk-tet og forestrer med eddiksyreanhydrid. The characteristic feature of the process according to the invention is that 16-pregnen-3a-ol-11,20-dione-3-acetate is reacted with methylmagnesium iodide in the presence of cuprous chloride, the product is hydrolysed and esterified with acetic anhydride.

I det følgende beskrives som eksempel en utførelsesform for oppfinnelsen. In the following, an embodiment of the invention is described as an example.

Eksempel. Example.

En oppløsning av 10,22 g metyljodid i 50 ml eter tilsettes til 1,73 g magnesium i 50 ml eter. Den oppløsning av metylmagnesiumjodid i eter man herved får, tilsettes i nitrogenatmosfære 0,045 g vannfritt kuproklorid. Den herved erholdte blanding tilsettes i løpet av omkring 1 time, mens reaksjonsblandingen omrøres kraftig og hol-des på omkring romtemperatur, en oppløs-ning av omkring 5,6 g 16-pregnen-3a-ol-11,20-3-acetat i 175 ml eter. Under denne tilsetning utskilles et kornet, fast stoff. Den resulterende blanding oppvarmes under svak kokning med tilbakeløpskjøling i 2 timer, hvorpå reaksjonsblandingen avkjø-les, og tilsettes 125 ml mettet, vandig am-moniumkloridoppløsning med derpå følgen-de tilsetning av 200 ml eter. Skiktene skil-les fra hverandre, og eterskiktet vaskes med tre porsjoner vann hver på 50 ml. Det vas-kede eterskikt tørres, og oppløsningsmidlet fordampes i vakuum, hvorved man får et brunt, viskost, oljeaktig stoff. Dette stoff oppvarmes i 15 minutter ved 60—70°C med en blanding av 25 ml eddiksyreanhydrid og 25 ml pyridin. Det således acetylerte produkt renses ved kromatografi i syrevasket aluminiumoxyd med påfølgende omkrystal-lisasjon fra petroleter, hvorved man får omkring 1,5 g i det vesentlige rent 16a-metyl-pregnen-3a-ol-ll,20-dion-3-acetat. A solution of 10.22 g of methyl iodide in 50 ml of ether is added to 1.73 g of magnesium in 50 ml of ether. The solution of methylmagnesium iodide in ether thus obtained is added in a nitrogen atmosphere to 0.045 g of anhydrous cupric chloride. A solution of about 5.6 g of 16-pregnen-3a-ol-11,20-3-acetate in 175 ml of ether. During this addition, a granular, solid substance separates. The resulting mixture is heated under gentle boiling with reflux for 2 hours, after which the reaction mixture is cooled, and 125 ml of saturated, aqueous ammonium chloride solution is added, followed by the addition of 200 ml of ether. The layers are separated, and the ether layer is washed with three portions of water each of 50 ml. The washed ether layer is dried, and the solvent is evaporated in a vacuum, whereby a brown, viscous, oily substance is obtained. This substance is heated for 15 minutes at 60-70°C with a mixture of 25 ml of acetic anhydride and 25 ml of pyridine. The thus acetylated product is purified by chromatography in acid-washed aluminum oxide with subsequent recrystallization from petroleum ether, whereby approximately 1.5 g of essentially pure 16a-methyl-pregnen-3a-ol-11,20-dione-3-acetate is obtained.

Claims (1)

Fremgangsmåte til fremstilling av 16a-metyl-pregnan-3a-ol-ll,20-dion-3-acetatProcess for the preparation of 16α-methyl-pregnan-3α-ol-11,20-dione-3-acetate med anestetisk virkning og som kan anven-; des som mellomprodukt ved fremstilling av 16a-metyl-l,4-pregnadien-17a-ol-3,20-dion- forbindelser, karakterisert ved at man omsetter 16-pregnen-3a-ol-ll,20-dion-3-acetat med metylmagnesiumjodid i nærvær av kuproklorid, hydrolyserer det dannede produkt og forestrer med eddiksyreanhydrid.with anesthetic effect and which can be used; des as an intermediate product during manufacture of 16a-methyl-1,4-pregnadien-17a-ol-3,20-dione compounds, characterized by reacting 16-pregnen-3a-ol-11,20-dione-3-acetate with methylmagnesium iodide in the presence of cuprous chloride, hydrolyzes the product formed and esterifies with acetic anhydride.
NO773681A 1976-10-28 1977-10-27 PROCEDURE FOR THE PREPARATION OF THYMOSIN ALFA1 NO143346C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73663876A 1976-10-28 1976-10-28
US05/766,638 US4079127A (en) 1976-10-28 1977-02-08 Thymosin alpha 1

Publications (3)

Publication Number Publication Date
NO773681L NO773681L (en) 1978-05-02
NO143346B true NO143346B (en) 1980-10-13
NO143346C NO143346C (en) 1981-01-21

Family

ID=27113070

Family Applications (1)

Application Number Title Priority Date Filing Date
NO773681A NO143346C (en) 1976-10-28 1977-10-27 PROCEDURE FOR THE PREPARATION OF THYMOSIN ALFA1

Country Status (22)

Country Link
JP (1) JPS5411220A (en)
AR (1) AR214903A1 (en)
AT (1) AT362493B (en)
AU (1) AU514996B2 (en)
CA (1) CA1101842A (en)
CH (1) CH633258A5 (en)
DE (1) DE2748213A1 (en)
DK (1) DK149094C (en)
ES (1) ES463588A1 (en)
FI (1) FI56317C (en)
FR (1) FR2369248A1 (en)
GB (1) GB1590457A (en)
IL (1) IL53218A (en)
IT (1) IT1195254B (en)
LU (1) LU78395A1 (en)
MC (1) MC1167A1 (en)
NL (1) NL188699C (en)
NO (1) NO143346C (en)
NZ (1) NZ185519A (en)
PT (1) PT67204B (en)
SE (1) SE442479B (en)
YU (1) YU40314B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2919592A1 (en) * 1979-05-15 1981-01-15 Max Planck Gesellschaft METHOD FOR PRODUCING THYMOSINE ALPHA 1 AND DERIVATIVES THEREOF
US4339427A (en) * 1980-04-14 1982-07-13 Hoffmann-La Roche Inc. Radioimmunoassay of thymosinα
FR2492663B1 (en) * 1980-10-24 1985-11-08 Vtoroi Mo G MEDICINAL PRODUCT REGULATING THE IMMUNITY T-SYSTEM AND ITS PREPARATION METHOD
DE3137231A1 (en) * 1981-09-18 1983-04-14 Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen BIS-THYMOSINE (ALPHA) (DOWN ARROW) 1 (DOWN ARROW) CONNECTIONS
JPH01250018A (en) * 1988-03-30 1989-10-05 Noble Sangyo Kk Displacement detector electronic measuring instrument

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1195980A (en) * 1966-08-24 1970-06-24 Univ Yeshiva Hormone-Like Preparations Derived from Thymus Gland and Methods of Producing the Same.

Also Published As

Publication number Publication date
NZ185519A (en) 1980-08-26
YU40314B (en) 1985-12-31
SE7712071L (en) 1978-04-29
FR2369248A1 (en) 1978-05-26
FI56317C (en) 1980-01-10
MC1167A1 (en) 1978-06-02
PT67204B (en) 1979-11-12
AR214903A1 (en) 1979-08-15
IL53218A (en) 1981-03-31
NL188699B (en) 1992-04-01
NO773681L (en) 1978-05-02
ATA765877A (en) 1980-10-15
JPS5411220A (en) 1979-01-27
GB1590457A (en) 1981-06-03
PT67204A (en) 1977-11-01
CH633258A5 (en) 1982-11-30
ES463588A1 (en) 1978-12-16
FI56317B (en) 1979-09-28
DK478277A (en) 1978-04-29
DK149094C (en) 1986-06-16
NL7711814A (en) 1978-05-03
AT362493B (en) 1981-05-25
AU514996B2 (en) 1981-03-12
LU78395A1 (en) 1979-02-02
NL188699C (en) 1992-09-01
NO143346C (en) 1981-01-21
FI773221A (en) 1978-04-29
IL53218A0 (en) 1977-12-30
IT1195254B (en) 1988-10-12
CA1101842A (en) 1981-05-26
DK149094B (en) 1986-01-20
JPS618805B2 (en) 1986-03-18
DE2748213C2 (en) 1988-06-30
AU2969977A (en) 1979-04-26
SE442479B (en) 1986-01-13
FR2369248B1 (en) 1981-01-02
DE2748213A1 (en) 1978-05-11
YU257877A (en) 1983-01-21

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