898269-64-2

Upstream product

• 866759-05-9 (1R,3aR,7aR)-7a-Methyl-1-((R)-1,6,6-trimethyl-5-oxo-heptyl)-octahydro-inden-4-one 
• 75-97-8 3,3-dimethyl-butan-2-one 
• 866759-19-5 (R)-7-((1R,3aR,4S,7aR)-4-Hydroxy-7a-methyl-octahydro-inden-1-yl)-2,2-dimethyl-octan-3-one 
• 139356-39-1 (1R,3R)-1,3-bis((tert-butyldimethyl)silanyloxy)-5-[2-(diphenylphosphinoyl)-ethylidene]cyclohexane 

Relevant academic research and scientific papers

HIGHLY ANTIPROLIFERATIVE, LOW-CALCEMIC, ANALOGS OF THE HORMONE 1α, 25-DIHYDROXYVITAMIN D3 WITH CARBONYL SIDE CHAINS

The present invention discloses a series of new carbonyl side chain anlogs of calcitriol (I). Unexpectedly, several of these ketone analogs, such as the 24- and 25-tert-butyl ketones, amides, hydroxymate esters and a hetero atom ketones even though lacking the classical side-chain tertiary hydroxyl group, are considerably more antiproliferative in vitro than the hormone calcitriol (I) even at physiologically relevant low nanomolar concentrations and are less calcemic than calcitriol (I) in vivo.

Highly antiproliferative, low-calcemic, side-chain ketone analogs of the hormone 1α,25-dihydroxyvitamin D3

A series 2a-4b of seven new side-chain ketone analogs of calcitriol (1) have been prepared. Unexpectedly, several of these 24- and 25-tert-butyl ketones, even though lacking the classical side-chain tertiary hydroxyl group, are considerably more antiproli