An intramolecular diels-alder approach to tricyclic taxoid skeletons
作者:Yee-Fung Lu、Alex G. Fallis
DOI:10.1016/s0040-4039(00)79157-x
日期:1993.5
the total synthesis of taxol. The cyclohexenone 2 is converted as illustrated to the trimethylcyclohexene 9 to which the diene and acetylenic side chains are attached by sequential nucleophilic additions. Removal of the trimethylsilyl protecting group and Dess-Martin oxidation afforded the triene 13. Microwave assisted thermal cyclization generated the tricyclic ketone 14 stereoselectively whose structure