157769-85-2

Upstream product

• 157769-84-1 (24R)-23-aza-1α,3β-bis[(tert-butyldimethylsilyl)oxy]-22-oxo-5α,8α-(3,5-dioxo-4-phenyl-1,2,4-triazolidine-1,2-diyl)-6-ergosten-25-ol 
• 157769-83-0 C₃₉H₇₃NO₄Si₂ 
• 140221-99-4 1α,3β-bis<(tert-butyldimethylsilyl)oxy>-23,24-bisnorchol-5-en-22-ol 

Relevant academic research and scientific papers

Synthesis and biological activity of a 1α,25-dihydroxyvitamin D2 analog bearing an amide group in the side-chain

Synthesis of a 1α,25-dihydroxyvitamin D2 analog (3), in which the double bond in the side-chain is replaced by an amide group, is described. Condensation of a carboxylic acid (8) with an amine (6) gave an amide (9), which in turn led to 3 via s