(20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Base Information

Chemical Name:(20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol
CAS No.:156178-18-6
Molecular Formula:C₃₄H₅₄O₄SSi
Molecular Weight:586.952
Hs Code.:

Synonyms:(20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Suppliers and Price of (20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Supply Marketing:

Business phase:: The product has achieved commercial mass production^*data from LookChem market partment

Manufacturers and distributors:

Manufacture/Brand
Chemicals and raw materials
Packaging
price

Total 0 raw suppliers

Chemical Property of (20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Chemical Property:

Purity/Quality:

Safty Information:

Pictogram(s):
Hazard Codes:

MSDS Files:

Useful:

Technology Process of (20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

There total 6 articles about (20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol 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: 87.0%

: 18162-48-6
tert-butyldimethylsilyl chloride

: 156178-17-5
(20S)-22-phenylsulfonyl-23,24-dinorchol-5-ene-3β,11α-diol

: 156178-18-6
(20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Guidance literature:: With 1H-imidazole; In N,N-dimethyl-formamide; for 3.5h; Ambient temperature;
DOI:10.1039/P19940000269

Reference yield:

: 142886-19-9
<17(20)Z>-pregna-5,17(20)-diene-3β,11α-diyl diacetate

: 156178-18-6
(20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Guidance literature:: Multi-step reaction with 6 steps

1: 83 percent / BF₃*OEt₂ / CH₂Cl₂ / 6 h / 0 °C

2: 98 percent / H₂ / Pt/C / ethyl acetate / 0.22 h / Ambient temperature

3: 93 percent / pyridine / 16 h / 4 °C

4: 1.) LiBr, Li₂CO₃ / 1) DMF, 85 deg C, 95 min; 2) DMF, 3 h, 85 deg C

5: 98 percent / aq. KOH / methanol; tetrahydrofuran / 2 h / 60 °C

6: 87 percent / imidazole / dimethylformamide / 3.5 h / Ambient temperature

With pyridine; 1H-imidazole; potassium hydroxide; boron trifluoride diethyl etherate; hydrogen; lithium carbonate; lithium bromide; platinum on activated charcoal; In tetrahydrofuran; methanol; dichloromethane; ethyl acetate; N,N-dimethyl-formamide;
DOI:10.1039/P19940000269

Reference yield:

: 156178-13-1
(20S)-22-hydroxy-23,24-dinorchola-5,16-diene-3β,11α-diyl diacetate

: 156178-18-6
(20S)-3β-(tert-butyldimethylsiloxy)-22-phenylsulfonyl-23,24-dinorchol-5-en-11α-ol

Guidance literature:: Multi-step reaction with 5 steps

1: 98 percent / H₂ / Pt/C / ethyl acetate / 0.22 h / Ambient temperature

2: 93 percent / pyridine / 16 h / 4 °C

3: 1.) LiBr, Li₂CO₃ / 1) DMF, 85 deg C, 95 min; 2) DMF, 3 h, 85 deg C

4: 98 percent / aq. KOH / methanol; tetrahydrofuran / 2 h / 60 °C

5: 87 percent / imidazole / dimethylformamide / 3.5 h / Ambient temperature

With pyridine; 1H-imidazole; potassium hydroxide; hydrogen; lithium carbonate; lithium bromide; platinum on activated charcoal; In tetrahydrofuran; methanol; ethyl acetate; N,N-dimethyl-formamide;
DOI:10.1039/P19940000269