Convergent Asymmetric Synthesis of Two Complex TRPV1 Antagonists
作者:Kenneth J. Butcher、Steven M. Denton、Stuart E. Field、Adam T. Gillmore、Gareth W. Harbottle、Roger M. Howard、Daniel A. Laity、Christian J. Ngono、Benjamin A. Pibworth
DOI:10.1021/op200177b
日期:2011.9.16
The convergent scale-up synthesis of two complex TRPV1 antagonists to support exploratory toxicology studies is described. Both compounds contain three chiral centers introduced by asymmetric synthesis with chiral control being critical for the success of the project. Preparation of the key cyclopropyl intermediate utilised an asymmetric cyclopropanation using thermally unstable ethyl diazoacetate