(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one

Base Information

• Chemical Name: (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one
• CAS No.: 1400572-48-6
• Molecular Formula: C₂₈H₃₀F₃NO₄
• Molecular Weight: 501.546
• Mol file: 1400572-48-6.mol

Synonyms:(4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one

Chemical Property of (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one

There total 5 articles about (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 62.0%

formaldehyd (50-00-0,30525-89-4,61233-19-0) + (6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-17-(2-fluoroacetyl)-11-hydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one (1270041-07-0) + N-Phenylhydroxylamine (100-65-2) → (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one (1400572-48-6)

Guidance literature:

In ethanol; at 100 ℃; for 23h;

Reference yield:

difluprednate → (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one (1400572-48-6)

Guidance literature:

Multi-step reaction with 5 steps

1: potassium acetate / N,N-dimethyl-formamide / 1.5 h / 100 °C / Inert atmosphere

2: Candida antarctica lipase / ethanol / 37 °C

3: N-ethyl-N,N-diisopropylamine / acetonitrile / 1 h / 20 °C / Inert atmosphere

4: tetrabutyl ammonium fluoride; potassium fluoride / acetonitrile; tetrahydrofuran / Inert atmosphere; Reflux

5: ethanol / 23 h / 100 °C

With Candida antarctica lipase; potassium fluoride; tetrabutyl ammonium fluoride; potassium acetate; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; ethanol; N,N-dimethyl-formamide; acetonitrile;

Reference yield:

acetic acid 2-((6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthrene-17-yl)-2-oxo-ethyl ester (2326-26-3) → (4aS,4bR,5S,6aS,6bR,9aS,10aS,10bS,12S)-4-b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4-a,6a-dimethyl-8-phenyl-4-a,4b,5,6,6a,6b,8,9,9a,10,10a,10b,11,12-tetradecahydro-7-oxa-8-azapentaleno[2,1-a]phenanthren-2-one (1400572-48-6)

Guidance literature:

Multi-step reaction with 4 steps

1: Candida antarctica lipase / ethanol / 37 °C

2: N-ethyl-N,N-diisopropylamine / acetonitrile / 1 h / 20 °C / Inert atmosphere

3: tetrabutyl ammonium fluoride; potassium fluoride / acetonitrile; tetrahydrofuran / Inert atmosphere; Reflux

4: ethanol / 23 h / 100 °C

With Candida antarctica lipase; potassium fluoride; tetrabutyl ammonium fluoride; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; ethanol; acetonitrile;

upstream raw materials:

formaldehyd

(6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-17-(2-fluoroacetyl)-11-hydroxy-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthren-3-one

N-Phenylhydroxylamine

acetic acid 2-((6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-11-hydroxy-10,13-dimethyl-3-oxo-6,7,8,9,10,11,12,13,14,15-decahydro-3H-cyclopenta[a]phenanthrene-17-yl)-2-oxo-ethyl ester