Synthesis of Vaniprevir (MK-7009): Lactamization To Prepare a 22-Membered Macrocycle
作者:Zhiguo J. Song、David M. Tellers、Michel Journet、Jeffrey T. Kuethe、David Lieberman、Guy Humphrey、Fei Zhang、Zhihui Peng、Marjorie S. Waters、Daniel Zewge、Andrew Nolting、Dalian Zhao、Robert A. Reamer、Peter G. Dormer、Kevin M. Belyk、Ian W. Davies、Paul N. Devine、David M. Tschaen
DOI:10.1021/jo2011494
日期:2011.10.7
synthesis of MK-7009, a 22-membered macrocycle, is described. A variety of ring-closing strategies were evaluated, including ring-closingmetathesis, intermolecular palladium-catalyzed cross-couplings, and macrolactamization. Ring closure via macrolactamization was found to give the highest yields under relatively high reaction concentrations. Optimization of the ring formation step and the synthesis of key