71031-58-8

Upstream product

• 51231-25-5 3α,5-cyclo-22-iodo-5α-23,24-bisnorcholan-6β-ol 6-methyl ether 
• 105395-33-3 (1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-10-Methoxy-3a,5a-dimethyl-6-[(E)-(R)-1-methyl-4-phenylselanyl-5-(toluene-4-sulfonyl)-pent-4-enyl]-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalene 
• 105395-36-6 (1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-6-{(R)-5-Ethyl-1-methyl-4-[1-(toluene-4-sulfonyl)-meth-(E)-ylidene]-heptyl}-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalene 
• 105395-38-8 [(R)-5-((1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-10-Methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-hex-1-ynyl]-trimethyl-silane 
• 105395-32-2 (1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-10-Methoxy-3a,5a-dimethyl-6-((R)-1-methyl-pent-4-ynyl)-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalene 
• 71050-15-2 (1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-6-((R)-5-Ethyl-1-methyl-4-methylene-heptyl)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalene 

Relevant academic research and scientific papers

APPLICATION OF SELENOSULFONATION TO MARINE STEROL SYNTHESIS. PREPARATION OF 24,28-DEHYDROAPLYSTEROL, XESTOSTEROL AND OSTREASTEROL FROM A COMMON ACETYLENIC INTERMADIATE

The title compounds were synthesized from a readily available steroidal acetylene by a protocol employing selenosulfonation, introduction of the appropriate side chain at C-24 via an alkyl selenocuprate, and reductive desulfonylation.