[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

Base Information

Chemical Name:[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester
CAS No.:307951-01-5
Molecular Formula:C₄₈H₆₃N₃O₅
Molecular Weight:762.045
Hs Code.:

[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

Synonyms:[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

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Chemical Property of [(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

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Technology Process of [(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

There total 9 articles about [(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl 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: 97.0%

: 307951-00-4
[(5S,8R,9S,10S,12S,13R,14S,17R)-10,13-Dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-3,7-dioxo-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

: 307951-01-5
[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

Guidance literature:: With hydroxylamine hydrochloride; sodium acetate; In ethanol; for 22h; Heating;
DOI:10.1021/ol006336v

Reference yield:

: 24424-99-5
di-tert-butyl dicarbonate

: 307951-01-5
[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: 93 percent / Et₃N / CH₂Cl₂ / 20 h / 20 °C

2: 78 percent / DMAP; Et₃N / CH₂Cl₂ / 20 h / 20 °C

3: 97 percent / pyridinium dichromate; 4A sieves / CH₂Cl₂ / 20 h / 20 °C

4: 97 percent / hydroxylamine hydrochloride; NaOAc / aq. ethanol / 22 h / Heating

With dmap; dipyridinium dichromate; 4 A molecular sieve; hydroxylamine hydrochloride; sodium acetate; triethylamine; In ethanol; dichloromethane; 1: Acylation / 2: Substitution / 3: Oxidation / 4: Condensation;
DOI:10.1021/ol006336v

Reference yield:

: 3758-71-2
3α,7α,12α-trihydroxycholan-24-ol

: 307951-01-5
[(5S,8R,9S,10S,12S,13R,14S,17R)-3,7-Bis-[(E)-hydroxyimino]-10,13-dimethyl-17-((R)-1-methyl-4-trityloxy-butyl)-hexadecahydro-cyclopenta[a]phenanthren-12-yl]-carbamic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 8 steps

1: 87 percent / DMAP; triethylamine / CH₂Cl₂ / 24 h / 20 °C

2: 99 percent / pyridinium dichromate; 4A sieves / CH₂Cl₂ / 20 h / 20 °C

3: 100 percent / hydroxylamine hydrochloride; NaOAc / aq. ethanol / 15 h / Heating

4: 96 percent / Na / propan-1-ol / 20 h / Heating

5: 93 percent / Et₃N / CH₂Cl₂ / 20 h / 20 °C

6: 78 percent / DMAP; Et₃N / CH₂Cl₂ / 20 h / 20 °C

7: 97 percent / pyridinium dichromate; 4A sieves / CH₂Cl₂ / 20 h / 20 °C

8: 97 percent / hydroxylamine hydrochloride; NaOAc / aq. ethanol / 22 h / Heating

With dmap; dipyridinium dichromate; 4 A molecular sieve; hydroxylamine hydrochloride; sodium acetate; sodium; triethylamine; In propan-1-ol; ethanol; dichloromethane; 1: Acetylation / 2: Oxidation / 3: Condensation / 4: Reduction / 5: Acylation / 6: Substitution / 7: Oxidation / 8: Condensation;
DOI:10.1021/ol006336v