A Unified Total Synthesis of the Immunomodulators (−)-Rapamycin and (−)-27-Demethoxyrapamycin: Construction of the C(21−42) Perimeters
作者:Amos B. Smith、Stephen M. Condon、John A. McCauley、Johnnie L. Leazer、James W. Leahy、Robert E. Maleczka
DOI:10.1021/ja963066w
日期:1997.2.1
A totalsynthesis of the potent, naturally occurring immunomodulators (−)-rapamycin (1) and (−)-27-demethoxyrapamycin (2) has been achieved via a unified, highly convergent synthetic strategy. Both targets were elaborated from common building blocks A−E, the latter available in decagram quantities. Herein we present the construction of the ABC northern perimeters of 1 and 2. The accompanying paper