Extensive Ring-Expansion Strategy for the Enantioselective Synthesis of the Medium Ring Ethers, Oxepene, Oxocane, and Oxonene, of Ciguatoxin

Abstract
The extensive ring-expansion strategy for the synthesis of oxepene 19, oxocane 23, and oxonene 28, which correspond to the D (E), I and F ring fragments of ciguatoxin (1), respectively, has been established. Chemoenzymatic asymmetric acylation of the meso alcohols using lipase AK provided a simple entry of the enantiomeric building blocks.

This publication has 0 references indexed in Scilit: