869732-22-9

Upstream product

• 32780-06-6 (5S)-5-(hydroxymethyl)-2-oxo-tetrahydrofuran 

Downstream Products

• 869732-32-1 (2E,8E)-(6S,7S,10S,11R,12S,14R)-15-(3-Benzyloxy-5-bromo-2-methoxy-phenyl)-7-(tert-butyl-dimethyl-silanyloxy)-6,12-dimethoxy-11-methoxymethoxy-2,8,10,14-tetramethyl-pentadeca-2,8-dienoic acid ethyl ester 
• 869732-33-2 (2E,6S,7S,8E,10S,11R,12S,14R)-15-(3-(benzyloxy)-5-bromo-2-methoxyphenyl)-7-((tert-butyldimethylsilyl)oxy)-6,12-dimethoxy-11-(methoxymethoxy)-2,8,10,14-tetramethylpentadeca-2,8-dienoic acid 
• 869732-09-2 (2E,6S,7S,8E,10S,11R,12S,14R)-15-(3-(benzyloxy)-5-bromo-2-methoxyphenyl)-7-(tert-butyldimethylsilyloxy)-6,12-dimethoxy-11-(methoxymethoxy)-2,8,10,14-tetramethylpentadeca-2,8-dienamide 
• 869732-19-4 (4E,8S,9S,10E,12S,13R,14S,16R)-20-(benzyloxy)-9-(tert-butyldimethylsilyloxy)-13-(methoxymethoxy)-4,10,12,16-tetramethyl-8,14,19-trimethoxy-2-aza-bicyclo[16.3.1]docosa-1⁽²¹⁾,4,10,18⁽²²⁾,19-pentaen-3-one 
• 869732-20-7 (4E,8S,9S,10E,12S,13R,14S,16R)-carbamic acid 20-(benzyloxy)-13-(methoxymethoxy)-4,10,12,16-tetramethyl-8,14,19-trimethoxy-3-oxo-2-azabicyclo[16.3.1]docosa-1⁽²¹⁾,4,10,18⁽²²⁾,19-pentaen-9-yl ester 
• 869732-18-3 (2E,6S,7S,8E,10S,11R,12S,14R)-ethyl 15-(3-(benzyloxy)-5-bromo-2-methoxyphenyl)-7-hydroxy-11-(methoxymethoxy)-6,12-dimethoxy-2,8,10,14-tetramethylpentadeca-2,8-dienoate 
• 869732-34-3 (4E,10E)-(8S,9S,12S,13R,14S,16R)-20-Benzyloxy-9-hydroxy-8,14,19-trimethoxy-13-methoxymethoxy-4,10,12,16-tetramethyl-2-aza-bicyclo[16.3.1]docosa-1⁽²²⁾,4,10,18,20-pentaen-3-one 

Relevant academic research and scientific papers

Practical synthesis of C1-8 fragment of autolytimycin via a chelation-controlled diastereoselective addition of diisopropenylzinc to α-methoxy aldehyde

The C1-8 fragment of autolytimycin was synthesized via a reliable 10-step route capable of delivering 41% overall yield at multi-gram scale. As a key step, a chelation-controlled isopropenylation of α-oxygenated aldehydes was established with a reagent combination of diisopropenylzinc, magnesium halide, and a dichloromethane/toluene mixed solvent. Cram-chelate isopropenylation products dominated for aldehydes with a small α-substituents, such as -OMe and -OBn groups, while the Felkin product could be obtained with a bulky -OTBS group.

Total synthesis of reblastatin

Enantioselective total synthesis of reblastatin is described. The synthesis highlights hydrozirconation, transmetalation, aldehyde addition sequence to install E-trisubstituted olefin and C7 stereocenter, and the first use of an intramolecular Buchwald-like amidation reaction to close the 19-membered macrolactam. Copyright