(S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

Base Information

Chemical Name:(S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester
CAS No.:869893-55-0
Molecular Formula:C₅₀H₇₆O₉Si
Molecular Weight:849.234
Hs Code.:

(S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

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Chemical Property of (S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

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Technology Process of (S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

There total 7 articles about (S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester 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: 35.0%

: 115208-40-7
(5α,20S)-3-oxopregnane-20-carboxylic acid

: 176703-17-6
17-(tert-butyldiphenylsiloxy)-1-hydroxy-3,6,9,12,15-pentaoxyheptadecane

: 869893-55-0
(S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

Guidance literature:: With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; In dichloromethane; for 16h;
DOI:10.1016/j.tet.2005.08.085

Reference yield:

: 1159-24-6
17-(Z)-ethylidene-3β-hydroxy-5α-androstane

: 869893-55-0
(S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

Guidance literature:: Multi-step reaction with 5 steps

1: 86 percent / pyridinium dichromate; molecular sieves 4 Angstroem / CH₂Cl₂ / 3 h

2: 98 percent / BF₃*Et₂O / CH₂Cl₂ / 0.17 h / 20 °C

3: hydrogen / palladium(II) oxide / ethanol; ethyl acetate / 14 h

4: Jones reagent / acetone; CH₂Cl₂ / 2 h / 20 °C

5: 35 percent / 4-(dimethylamino)pyridine; 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide HCl salt / CH₂Cl₂ / 16 h

With dmap; dipyridinium dichromate; jones reagent; 4 A molecular sieve; boron trifluoride diethyl etherate; hydrogen; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; palladium(II) oxide; In ethanol; dichloromethane; ethyl acetate; acetone;
DOI:10.1016/j.tet.2005.08.085

Reference yield:

: 607733-96-0
cis-Δ17(20)-5alpha-pregnen-3-one

: 869893-55-0
(S)-2-((5S,8R,9S,10S,13S,14S,17R)-10,13-Dimethyl-3-oxo-hexadecahydro-cyclopenta[a]phenanthren-17-yl)-propionic acid 2-{2-[2-(2-{2-[2-(tert-butyl-diphenyl-silanyloxy)-ethoxy]-ethoxy}-ethoxy)-ethoxy]-ethoxy}-ethyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 98 percent / BF₃*Et₂O / CH₂Cl₂ / 0.17 h / 20 °C

2: hydrogen / palladium(II) oxide / ethanol; ethyl acetate / 14 h

3: Jones reagent / acetone; CH₂Cl₂ / 2 h / 20 °C

4: 35 percent / 4-(dimethylamino)pyridine; 1-[3-(dimethylamino)propyl]-3-ethylcarbodiimide HCl salt / CH₂Cl₂ / 16 h

With dmap; jones reagent; boron trifluoride diethyl etherate; hydrogen; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; palladium(II) oxide; In ethanol; dichloromethane; ethyl acetate; acetone;
DOI:10.1016/j.tet.2005.08.085