119786-32-2

Upstream product

• 10211-88-8 (20S)-3β-acetoxybisnorchol-5-en-22-al 

Downstream Products

• 10211-88-8 (20R)-3β-acetoxybisnorchol-5-en-22-al 
• 1474-14-2 (S)-2-((8S,9S,10R,13S,14S,17R)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-propionic acid 
• 1474-14-2 (R)-2-((8S,9S,10R,13S,14S,17R)-3-Acetoxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-propionic acid 
• 74996-92-2 3β-acetoxy-21-chlorobisnorchol-5-ene 
• 74996-92-2 3β-acetoxy-22-chlorobisnorchol-5-ene 
• 1042-59-7 3β-hydroxybisnorchol-5-ene 

Relevant academic research and scientific papers

Preparation of 3β-hydroxy-27-norcholest-5-ene-25-one and intermediates thereof

A process for preparing 3β-hydroxy-27-norcholest-5-ene-25-one, a useful intermediate in the synthesis of 25-acetoxy vitamin D3, novel intermediates, and preparation thereof are disclosed.

Titration of sterol double bonds with dibromopyridine sulfate

Cis and trans 22 dehydrocholesteryl acetates and cis and trans 22 cholesten 3β yl acetates were prepared and compared to Δ22 phytosterylacetates by titration with dibromopyridine sulfate. The cholesterol derivatives absorbed close to the theore