Total Synthesis of (−)-Tetrodotoxin from D-Glucose: A New Route to Multi-Functionalized Cyclitol Employing the Ferrier(II) Reaction toward (−)-Tetrodotoxin
Totalsynthesis of (−)-tetrodotoxin (TTX) from D-glucose is described. As a critical transformation step for synthesizing TTX, a key multi-functionalized cyclitol was prepared from D-glucose employ...
Chemoenzymatic Synthesis of Advanced Intermediates for Formal Total Syntheses of Tetrodotoxin
作者:Daler Baidilov、Lukas Rycek、John F. Trant、Jordan Froese、Brennan Murphy、Tomas Hudlicky
DOI:10.1002/anie.201804602
日期:2018.8.20
Advanced intermediates for the syntheses of tetrodotoxin reported by the groups of Fukuyama, Alonso, and Sato were prepared. Key steps include the toluene dioxygenase mediated dihydroxylation of either iodobenzene or benzyl acetate. The resulting diene diols were transformed into Fukuyama's intermediate in six steps, into Alonso's intermediate in nine steps, and into Sato's intermediate in ten steps
A stereoselective and efficient totalsynthesis of opticallyactive tetrodotoxin (TTX) is described. A polyfunctionalized key cyclitol compound containing branched-chains for the synthesis of TTX was prepared from d-glucose employing the Henry reaction (Nitro aldol reaction) as the key transformation. Stereoselective construction of the α-azido-aldehyde branched-chain was achieved via the key spiro