128041-89-4

Upstream product

• 128062-05-5 2,3,5,9-tetra-O-benzyl-4,8-dideoxy-4-C-(1'-formyl)-(1'S)-2,8-di-C-methyl-L-talo-L-altro-1',1-bipyranoside-decitol 
• 123505-98-6 (2R,3S,4R,4aS,5S,6S,8aS)-4,5,6-Tris-benzyloxy-2-[(1R,2R)-2-benzyloxy-3-(tert-butyl-dimethyl-silanyloxy)-1-methyl-propyl]-6-methyl-hexahydro-pyrano[2,3-b]pyran-3-ol 

Downstream Products

• 115072-44-1 2,3,5,9-tetra-O-benzyl-4,6,8-10,11-pentadeoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-methoxymethoxymethyl)-2,8,10-tri-C-methyl-L-galacto-L-altro-1,1':1',7-bipyranoside-undecitol 
• 128041-90-7 2,3,5,9-tetra-O-benzyl-4,6,8-trideoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-methoxymethoxymethyl)-2,8-di-C-methyl-L-galacto-L-altro-1',1-bipyranoside-decitol 
• 128041-92-9 2,3,5,9-tetra-O-benzyl-4,6,8,11-tetradeoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-methoxymethoxymethyl)-2,8-di-C-methyl-L-galacto-L-altro-10-ulo-1',1-bipyranoside-decitol 
• 128041-93-0 (3R,4R,5S)-4-Benzyloxy-3-methyl-5-((2R,3R,4S,4aS,5S,6S,8aS)-4,5,6-tris-benzyloxy-3-methoxymethoxymethyl-6-methyl-hexahydro-pyrano[2,3-b]pyran-2-yl)-hex-1-en-3-ol 
• 128041-91-8 (2R,3S)-2-Benzyloxy-3-((2R,3R,4S,4aS,5S,6S,8aS)-4,5,6-tris-benzyloxy-3-methoxymethoxymethyl-6-methyl-hexahydro-pyrano[2,3-b]pyran-2-yl)-butyraldehyde 
• 128062-06-6 7,10-anhydro-2,3,5-tri-O-benzyl-11-bromo-4,6,8,10,11-pentadeoxy-4-C-(1'-formyl)-6-C-(1-methoxymethoxymethyl)-2,8,10-tri-C-methyl-D-(or L-)glycero-L-talo-L-altro-1',1-pyranose-undecitol 
• 128041-94-1 (2S,3R,4S)-3-Benzyloxy-2-hydroxy-2-methyl-4-((2R,3R,4S,4aS,5S,6S,8aS)-4,5,6-tris-benzyloxy-3-methoxymethoxymethyl-6-methyl-hexahydro-pyrano[2,3-b]pyran-2-yl)-pentanal 
• 128041-97-4 7,10-anhydro-2,3,5-tri-O-benzyl-11-bromo-4,6,8,11-tetradeoxy-4-C-(1'-formyl)-6-C-(1-methoxymethoxymethyl)-2,8,10-tri-C-methyl-D-(or L-)glycero-L-talo-L-altro-1',1-pyranose-undecitol 
• 128041-95-2 2,3,5,9-tetra-O-benzyl-4,6,8-trideoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-methoxymethoxymethyl)-2,8,10-tri-C-methyl-D-glycero-L-galacto-L-altro-1,1':1':7-bipyranoside-undecitol 
• 128041-95-2 2,3,5,9-tetra-O-benzyl-4,6,8-trideoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-methoxymethoxymethyl)-2,8,10-tri-C-methyl-L-glycero-L-galacto-L-altro-1,1':1',7-bipyranoside-undecitol 
• 114406-18-7 2,3,5,9-tetra-O-benzyl-4,6,8-trideoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-hydroxymethyl)-2,8-di-C-methyl-10-O-t-butyldimethylsilyl-L-talo-L-altro-1',1-bipyranoside-decitol 
• 114406-18-7 2,3,5,9-tetra-O-benzyl-4,6,8-trideoxy-4-C-(1'-formyl)-(1'S)-6-C-(1-hydroxymethyl)-2,8-di-C-methyl-10-O-t-butyldimethylsilyl-L-galacto-L-altro-1',1-bipyranoside-decitol 
• 114406-17-6 2,3,5,9-tetra-O-benzyl-4,6,8-trideoxy-4-C-(1'-formyl)-(1'S)-2,8-di-C-methyl-10-O-t-butyldimethylsilyl-L-lyxo-L-altro-6-eno-1',1-bipyranoside-decitol 

Relevant academic research and scientific papers

Support Studies for Formulating the Nine Contiguous Chiral Centres of Streptovaricin A Ansa Chain

The tripyranoside (1b), which had been previously prepared as a key intermediate for the synthesis of the streptovaricin A ansa chain, lacks synthons for the C-24-CO2Me and C-28 tertiary alcohol of the antibiotic .The 'upper' acetal ring of (1b) has been cleaved selectively, an exocyclic methylene is develeoped at C-6, and a hydroboration sequence has been used to install an axial hydroxymethyl group as the synthon for the CO2Me group.In order to provide a self-consistent means of structure verification, both epimers of the C-10 tertiary alcohol have been prepared by utilizing empirically determined strategies for acyclic stereoselection.