(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

Base Information

Chemical Name:(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate
CAS No.:1323943-33-4
Molecular Formula:C₂HF₃O₂*C₃₀H₃₅F₂NO₄
Molecular Weight:625.633
Hs Code.:

(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

Synonyms:(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

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Chemical Property of (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

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Technology Process of (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

There total 5 articles about (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate 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: 15.0%

: 1323942-37-5
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-5-hydroxy-4a,6adimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-azapentaleno[2,1-a]phenanthrene-6b-carboxylic acid

: 616-38-6
carbonic acid dimethyl ester

: 76-05-1
trifluoroacetic acid

: 1323943-33-4
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

Guidance literature:: (4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-benzyl-4b,12-difluoro-5-hydroxy-4a,6adimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-azapentaleno[2,1-a]phenanthrene-6b-carboxylic acid; carbonic acid dimethyl ester; With 1,8-diazabicyclo[5.4.0]undec-7-ene; at 90 ℃; for 72h;

trifluoroacetic acid;

Reference yield:

: 1270039-29-6
(6S,8S,9R,10S,11S,13S,14S)-6,9-difluoro-11-hydroxy-17-(2-hydroxy-acetyl)-10,13-dimethyl-6,7,8,9,10,11,12,13,14,15-decahydro cyclopenta[a]phenanthrene-3-one

: 1323943-33-4
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

Guidance literature:: Multi-step reaction with 3 steps

1.1: trifluoroacetic acid / xylene / 1 h / 140 °C

2.1: sodium hydroxide; water / tetrahydrofuran / 72 h / 20 °C

2.2: pH 6

3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 72 h / 90 °C

With water; 1,8-diazabicyclo[5.4.0]undec-7-ene; trifluoroacetic acid; sodium hydroxide; In tetrahydrofuran; xylene;

Reference yield:

: difluprednate

: 1323943-33-4
(4aS,4bR,5S,6aS,6bS,9aR,10aS,10bS,12S)-8-Benzyl-4b,12-difluoro-5-hydroxy-4a,6a-dimethyl-2-oxo-2,4b,5,6,6a,7,8,9,9a,10,10a,10b,11,12-tetradecahydro-4aH-8-aza-pentaleno[2,1-a]phenanthrene-6b-carboxylic acid methyl ester trifluoroacetate

Guidance literature:: Multi-step reaction with 5 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: trifluoroacetic acid / xylene / 1 h / 140 °C

4.1: sodium hydroxide; water / tetrahydrofuran / 72 h / 20 °C

4.2: pH 6

5.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / 72 h / 90 °C

With ethanol; water; potassium acetate; 1,8-diazabicyclo[5.4.0]undec-7-ene; trifluoroacetic acid; sodium hydroxide; Candida antarctica lipase; In tetrahydrofuran; N,N-dimethyl-formamide; xylene;