An Enantioselective Synthesis of FR182877 Provides a Chemical Rationalization of Its Structure and Affords Multigram Quantities of Its Direct Precursor
作者:Christopher D. Vanderwal、David A. Vosburg、Sven Weiler、Erik J. Sorensen
DOI:10.1021/ja021472b
日期:2003.5.1
the potent microtubule-stabilizing agent FR182877 is described. Guided by a proposed biogenesis of this complex natural product, a solution emerged that involved the first reported example of a double transannular Diels-Alderreaction to fashion the key elements of its hexacyclic structure. This pivotal transformation creates a complex pentacycle from a 19-membered macrocyclic pentaene, forming seven