Divergent Synthesis of the Co-isolated Mycotoxins Longianone, Isopatulin, and (<i>Z</i>)-Ascladiol via Furan Oxidation
作者:Ioannis N. Lykakis、Ioannis-Panayotis Zaravinos、Christos Raptis、Manolis Stratakis
DOI:10.1021/jo900855e
日期:2009.8.21
(Z)-ascladiol were prepared following a divergent route from a readily available furan diol. The route toward longianone features an unprecedented TBAF-promoted intramolecular oxa-Michael reaction to a conjugated keto enoate, and the oxidation of dihydrolongianone to longianone with stabilized IBX. The route to isopatulin features a chemoenzymaticsynthesis of (Z)-ascladiol, and the regioselective