Total Synthesis of (−)-Irciniastatin B and Structural Confirmation via Chemical Conversion to (+)-Irciniastatin A (Psymberin)

Abstract

The total synthesis and structural confirmation of the marine sponge cytotoxin (-)-irciniastatin B has been achieved via a unified strategy employing a late-stage, selective deprotection/oxidation sequence that provides access to both (+)-irciniastatin A (psymberin) and (-)-irciniastatin B.

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