Stereoselective total synthesis of lysocellin, the representative polyether antibiotic of the lysocellin family. Part 1. Synthesis of C1–C9 and C16–C23 subunits
The C1–C9 (4) and C16–C23 subunits (9) of lysocellin (1), a representative polyetherantibiotic, were synthesized stereoselectively from D-glucose and D-mannitol. Stereocontrolled hydroboration, Michael reaction, Grignard reaction, etc. were successfully applied.
Stereocontrolledsynthesis of two fragments corresponding to the C1-C9 (3) and C16-C23 parts (6) of lysocellin (1) using hydroboration, Wittig-Homer reaction, and Michael reaction in the key steps is described.