AN EFFICIENT PROCESS FOR THE PREPARATION OF A HUMAN LEUKOCYTE ELASTASE INHIBITOR

摘要

Processes for the preparation of [S- (R,S)]-N- [(1,3- benzodioxol- 5-yl)butyl]- 3,3- diethyl- 2[4- [(4- methyl-1- piperazinyl)carbonyl]phenoxy] -4-oxo- 1-azetidine carboxamide, a useful inhibitor of human leukocyte elastase (HLE), are described.