38636-50-9

Upstream product

• 105455-83-2 (1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-6-((1R,5S)-1,5-Dimethyl-4-methylene-heptyl)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalene 
• 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 
• 105395-34-4 (1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-6-{(1R,5S)-1,5-Dimethyl-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 
• 105139-87-5 25-carboethoxy-26-methyl-6β-methoxy-3α,5-cylo-27-norcholestan-24-one 
• 104958-96-5 25-carboethoxy-6β-methoxy-3α,5-cylo-27-norcholestan-24-one 
• 105139-88-6 (24(R,S),25(R,S))-27-methyl-6β-methoxy-3α,5-cylocholestane-24,26-diol 

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.

Biosynthetic Studies of Marine Lipids. 9. Stereochemical Aspects and Hydrogen Migrations in the Biosynthesis of the Triply Alkylated Side Chain of the Sponge Sterol Strongylosterol

The biosynthesis of strongylosterol, a product of triple bioalkylation of the cholesterol side chain, was studied in the Indo-Pacific sponge Strogylophora durissima.Out of four plausible biosyntheic pathways, the operative sequence was shown to proceed vi