105539-45-5

Upstream product

• 105562-31-0 (+/-)-<2α(S*),3α,6β>-3,6-dihydro-6-methoxy-3,5-dimethyl-2-<1-methyl-2-(phenylmethoxy)ethyl>-2H-pyran 
• 89363-64-4 (+/-)-<2α(R*),3α>-2,3-dihydro-3,5-dimethyl-2-<1-methyl-2-(phenylmethoxy)ethyl>-4H-pyran-4-one 
• 105539-44-4 1,5-anhydro-2,4,6-trideoxy-2,4,6-trimethyl-7-O-(phenylmethyl)-DL-manno-hept-1-enitol 
• 74130-31-7 3-(benzyloxy)-2-methylpropanal 
• 72486-93-2 1-methoxy-2-methyl-3-trimethylsiloxy-1,3-pentadiene 
• 105539-46-6 (2R,3S,5R,6S)-2-((R)-2-Benzyloxy-1-methyl-ethyl)-6-methoxy-3,5-dimethyl-tetrahydro-pyran-4-one 

Downstream Products

• 105539-47-7 (+/-)-2,4,6-trideoxy-2,4,6-trimethyl-7-O-(phenylmethyl)-D-glycero-α-D-talo-heptose cyclic 1,3-propanediyl mercaptal 
• 105539-49-9 (+/-)-2,4,6-trideoxy-2,4,6-trimethyl-3,5-O-(1-methylethylidene)-7-O-(phenylmethyl)-D-glycero-D-talo-heptose 
• 105539-48-8 (+/-)-2,4,6-trideoxy-2,4,6-trimethyl-3,5-O-(1-methylethylidene)-7-O-(phenylmethyl)-D-glycero-D-talo-heptose cyclic 1,3-propanediyl mercaptal 
• 105539-54-6 (+/-)-1,5-anhydro-2,4,6,8,10-pentadeoxy-4,6,8,10-tetramethyl-7,9-O-(1-methylethylidene)-11-O-(phenylmethyl)-D-arabino-L-manno-undec-1-en-ulose 
• 105539-56-8 (2R,3R,4S,6R)-2-{(R)-1-[(4R,5R,6S)-6-((S)-2-Benzyloxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-ethyl}-3-methyl-6-methylsulfanyl-tetrahydro-pyran-4-ol 
• 105539-57-9 methyl (+/-)-2,4,6,8,10-pentadeoxy-4,6,8,10-tetramethyl-3-O-methyl-7,9-O-(1-methylethylidene)-11-O-(phenylmethyl)-1-thio-D-manno-β-L-galacto-undecopyranoside 
• 105539-53-5 (2RS)-1,5-anhydro-4,6,8,10-tetradeoxy-4,6,8,10-tetramethyl-7,9-O-(1-methylethylidene)-2-S-phenyl-11-O-(phenylmethyl)-2-thio-D-arabino-L-manno-3-undeculose 
• 105616-10-2 methyl (+/-)-2,4,6-trideoxy-2,4,6-trimethyl-7-O-(phenylmethyl)-D-glycero-α-D-talo-heptopyranoside 
• 105539-55-7 methyl (+/-)-2,4,6,8,10-pentadeoxy-4,6,8,10-tetramethyl-7,9-O-(1-methylethylidene)-11-O-(phenylmethyl)-1-thio-D-arabino-β-L-manno-undecopyranosid-3-ulose 
• 105616-12-4 (2S,3S,6S)-2-{(R)-1-[(4R,5R,6S)-6-((S)-2-Benzyloxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-ethyl}-3-methyl-6-methylsulfanyl-tetrahydro-pyran-4-one 
• 105539-52-4 (+/-)-1,5-anhydro-4,6,8,10-tetradeoxy-4,6,8,10-tetramethyl-7,9-O-(1-methylethylidene)-2-S-phenyl-11-O-(phenylmethyl)-2-thio-D-arabino-L-manno-undec-1-en-3-ulose 
• 105616-11-3 (2R,3S)-2-{(R)-1-[(4R,5S,6R)-6-((R)-2-Benzyloxy-1-methyl-ethyl)-2,2,5-trimethyl-[1,3]dioxan-4-yl]-ethyl}-3-methyl-5-phenylsulfanyl-2,3-dihydro-pyran-4-one 
• 105539-46-6 (2R,3S,5R,6S)-2-((R)-2-Benzyloxy-1-methyl-ethyl)-6-methoxy-3,5-dimethyl-tetrahydro-pyran-4-one 

Relevant academic research and scientific papers

Expeditious Synthesis of the Polypropionate Sector of Rifamicyn S by Reiterative Diene-Aldehyde Cyclocondensation Reactions

Two Lewis acid catalyzed cyclocondensation reactions of activated dienes with β-oxygenated aldehydes are used in a rapid synthesis of the C19-C29 polypropionate sector of rifamycin S.Both processes occur with essentially perfect diastereofacial selectivit