77531-55-6

Upstream product

• 100928-12-9 (R)-4-Methylene-3-[2-[(1R,3aS,7aR)-7a-methyl-1-[(R)-1-methyl-4-(2-methyl-[1,3]dioxolan-2-yl)-butyl]-octahydro-inden-(4E)-ylidene]-eth-(Z)-ylidene]-cyclohexanol 
• 100928-11-8 25,25-(ethylenedioxy)-27-norvitamin D₃ triisopropylsilyl ether 
• 55812-82-3 (1R,3aR,4S,7aR)-7a-methyl-1-<(2E)-(1R,4R)-1,4,5-trimethyl-hex-2-enyl>-octahydro-1H-inden-4-ol 
• 100928-07-2 8β-hydroxy-de-A,B-27-norcholestan-25-one 
• 100928-09-4 de-A,B-25,25-(ethylenedioxy)-27-norcholestan-8-one 
• 100928-02-7 (24R,22E)-de-A,B-8β-<(tert-butyldimethylsilyl)oxy>ergost-22-ene 
• 100928-04-9 (S)-2-((1R,3aR,4S,7aR)-4-((tert-butyldimethylsilyl)oxy)-7a-methyloctahydro-1H-inden-1-yl)propyl 4-methylbenzenesulfonate 
• 100928-05-0 {(1R,3aR,4S,7aR)-octahydro-1-[(S)-1-iodopropan-2-yl]-7a-methyl-1H-inden-4-yloxy}(tert-butyl)dimethylsilane 
• 100928-08-3 de-A,B-25,25-(ethylenedioxy)-27-norcholestan-8β-ol 
• 100928-01-6 (S,Z)-2'-<5-<(triisopropylsilyl)oxy>-2-methylenecyclohexylidene>ethanol 
• 100938-73-6 {(R)-3-[2-Chloro-eth-(Z)-ylidene]-4-methylene-cyclohexyloxy}-triisopropyl-silane 
• 100928-06-1 (R)-6-[(1R,3aR,4S,7aR)-4-(tert-Butyl-dimethyl-silanyloxy)-7a-methyl-octahydro-inden-1-yl]-3-trimethylsilanyl-heptan-2-one 
• 84985-78-4 (4R,7aR)-1-((2R,5R,E)-5,6-dimethylhept-3-en-2-yl)-4-((R,Z)-1-hydroxy-2-((S)-5-hydroxy-2-methylenecyclohexylidene)ethyl)-7a-methyloctahydro-1H-inden-4-ol 
• 100928-10-7 (S,Z)-<2'-<5-((triisopropylsilyl)oxy)-2-methylenecyclohexylidene>ethyl>diphenylphosphine oxide 

Downstream Products

• 73809-05-9 3-epi-25-hydroxyvitamin D₃ 

Relevant academic research and scientific papers

Studies on the Synthesis of Side-Chain Hydroxylated Metabolites of Vitamin D. 3. Synthesis of 25-Ketovitamin D3 and 25-Hydroxyvitamin D3

A general method for the synthesis of the principal vitamin D3 metabolites whether unlabeled or with radiolabeled side chains is described.The synthesis of the key de-A,B-(ethylenedioxy)cholestanone derivative 7d is based on the coupling between the iodid