Method of preparing bicyclic intermediates from piperazic acid or an ester thereof useful in the manufacture of caspase inhibitors
申请人:Vertex Pharmaceuticals, Incorporated
公开号:US06703500B2
公开(公告)日:2004-03-09
The invention relates to a process for synthesizing piperazic acid and similar, ring-containing acids. The invention also relates to a process for simultaneously N(2)-acylating piperazic acid or an ester thereof and forming a bicyclic ring structure. The invention also relates to the use of either or both processes in a method of synthesizing a bicyclic compound useful as an intermediate for the production of an inhibitor of a caspase, particularly an inhibitor of interleukin-1&bgr; converting enzyme (“ICE”).