262594-25-2

Upstream product

• 139356-33-5 (3S,5S)-3,5-bis[(tert-butyl)dimethylsilyloxy]-1-hydroxycyclohexane-1-carboxylic acid methyl ester 
• 262594-22-9 methyl (3S,5R)-3,5-di[(tert-butyldimethylsilyl)oxy]-cyclohex-1-enecarboxylate 
• 262594-23-0 methyl (3S,5R)-5-[(tert-butyldimethylsilyl)oxy]-3-hydroxy-cyclohex-1-enecarboxylate 
• 77-95-2 D-(-)-quinic acid 
• 262594-24-1 methyl (3R,5R)-5-[(tert-butyldimethylsilyl)oxy]-3-[(p-nitrophenylcarbonyl)oxy]cyclohex-1-enecarboxylate 

Downstream Products

• 262594-26-3 (3R,5R)-3,5-Bis-(tert-butyl-dimethyl-silanyloxy)-cyclohex-1-enecarboxylic acid methyl ester 
• 262594-21-8 3,5-di[(tert-butyldimethylsilyl)oxy]-1-ethynylcyclohex-1-ene 
• 262594-20-7 (1R,3R)-5-[(1R,3aR,7aR)-1-((R)-5-Hydroxy-1,5-dimethyl-hexyl)-7a-methyl-2,3,3a,6,7,7a-hexahydro-1H-inden-4-ylethynyl]-cyclohex-4-ene-1,3-diol 

Relevant academic research and scientific papers

Synthesis of two 6-s-cis locked stereoisomeric analogues of the steroid hormone 1α,25-dihydroxyvitamin D3: 1 α,25-dihydroxy-19-nor-previtamin D3 and 1β,25-dihydroxy- 19-nor-previtamin D3

An efficient synthesis of A-ring precursors 8 and 9 from inexpensive commercially available (-)-quinic acid has been developed. A-Ring synthon 8 has been obtained through a short sequence (eight steps) in high overall yield (30%). One key step in the synt