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”).
本发明涉及一种合成哌嗪酸及类似含环酸的过程。该发明还涉及一种同时对哌嗪酸或其酯进行N(2)-酰化并形成双环环结构的过程。该发明还涉及以上任一或两种过程在合成一种双环化合物的方法中的应用,该双环化合物可作为生产一种caspase抑制剂的中间体,特别是一种白细胞介素-1β转化酶(“ICE”)抑制剂的中间体。