17150-36-6

Upstream product

• 7591-17-5 3β-hydroxy-5α-cholestan-7-one 
• 98-59-9 p-toluenesulfonyl chloride 
• 3381-52-0 3β-(toluene-4-sulfonyloxy)-5α-cholestane 

Relevant academic research and scientific papers

7-OXO-7a-OXA-BRASSINOSTEROIDS WITH CHOLESTANE SIDE-CHAIN

New 7-oxa-7a-oxa analogs of brassinolide with cholestane side-chain were prepared.Analogs VIII and IX with 2,3-diol grouping exhibit a weak brassinolide activity.Of the synthesized compounds, the highest brassinolide activity was found for 3α,4α-dihydroxy-7a-oxa-B-homo-5α-cholestan-7-one (X).

Functionalisation of Saturated Hydrocarbons. Part 6. Selective Oxidation of Steroids and Related Compounds

The oxidation of a series of steroids by the Gif system gives, almost without exception, the 20-ketone as major isolated product.The side-chain cleavage is made more selective by modification of rings A or B.The oxidation of oleana-1,12-diene-3,11-dione has also been studied and the two principal products have been identified.