(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthren-2-one

Base Information

Chemical Name:(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthren-2-one
CAS No.:1323943-39-0
Molecular Formula:C₃₀H₃₄F₃NO₃
Molecular Weight:513.6
Hs Code.:

(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthren-2-one

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

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

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

There total 5 articles about (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[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: 26.7%

: 1270041-07-0
(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

: 93102-05-7
N-benzyl-N-(methoxymethyl)-N-[(trimethylsilyl)methyl]amine

: 1323943-39-0
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthren-2-one

Guidance literature:: trifluoroacetic acid; In 1,4-dioxane; at 100 ℃; for 1h; Closed vessel;

Reference yield:

: difluprednate

: 1323943-39-0
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthren-2-one

Guidance literature:: Multi-step reaction with 4 steps

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

2.1: ethanol / Candida antarctica lipase / 37 °C / Enzymatic reaction

3.1: N-ethyl-N,N-diisopropylamine; methanesulfonyl chloride / acetonitrile / 0.5 h / 20 °C / Inert atmosphere

3.2: 4 h / 60 °C

4.1: trifluoroacetic acid / 1,4-dioxane / 1 h / 100 °C / Closed vessel

With ethanol; potassium acetate; methanesulfonyl chloride; N-ethyl-N,N-diisopropylamine; Candida antarctica lipase; trifluoroacetic acid; In 1,4-dioxane; N,N-dimethyl-formamide; acetonitrile;

Reference yield:

: 2326-26-3
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

: 1323943-39-0
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-6b-(2-fluoro-acetyl)-5-hydroxy-4a,6a-dimethyl-4b,5,6,6a,6b,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthren-2-one

Guidance literature:: Multi-step reaction with 3 steps

1.1: ethanol / Candida antarctica lipase / 37 °C / Enzymatic reaction

2.1: N-ethyl-N,N-diisopropylamine; methanesulfonyl chloride / acetonitrile / 0.5 h / 20 °C / Inert atmosphere

2.2: 4 h / 60 °C

3.1: trifluoroacetic acid / 1,4-dioxane / 1 h / 100 °C / Closed vessel

With ethanol; methanesulfonyl chloride; N-ethyl-N,N-diisopropylamine; Candida antarctica lipase; trifluoroacetic acid; In 1,4-dioxane; acetonitrile;