141273-72-5

Upstream product

• 141292-16-2 3β-(Benzoyloxy)-24-oxo-5α-cholesta-7,22-diene-14α-carbonitrile 
• 136209-57-9 Benzoic acid (3S,5R,8R,9R,10S,13R,14S,17R)-10,13-dimethyl-7-oxo-17-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-tetradecahydro-20-oxa-cyclopropa[8,14]cyclopenta[a]phenanthren-3-yl ester 
• 136209-58-0 Benzoic acid (3S,5R,8R,9S,10S,13R,14R,17R)-14-cyano-10,13-dimethyl-7-oxo-17-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-hexadecahydro-cyclopenta[a]phenanthren-3-yl ester 
• 136209-60-4 3β-(Benzoyloxy)-22-oxo-23,24-dinor-5α-chol-7-ene-14α-carbonitrile 
• 116930-12-2 Benzoic acid (3S,5R,9R,10S,13R,17R)-10,13-dimethyl-7-oxo-17-((E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl)-2,3,4,5,6,7,9,10,11,12,13,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 
• 4356-17-6 benzoic acid-(5α-ergostadien-(7.22t)-yl-(3β)-ester) 

Relevant academic research and scientific papers

Regioselective Synthesis of Δ6-, Δ7-, and Δ8-14α-Cyanosterol Derivatives: Versatile Precursors to 14α-Demethylase Inhibitors

The efficient preparation of 3β-(benzoyloxy)-4,4-dimethyl-5α-cholest-8(14)-en-7-one (4a) and 3β-(benzyloxy)-5α-ergosta-8(14),22-dien-7-one (4b) and their conversion to Δ6-, Δ7- or Δ8-14α-functionalized sterols is reported.