PROCESSES FOR PRODUCTION OF DIPHENYLYLAZETIDIN-2-ONES AND RELATED COMPOUNDS

摘要

Processes for preparing a 4-biphenylylazetidinone of formula are described. The processes generally proceed by either cyclizing a biphenylyl-ßaminoacyl compound or by arylating a 1-unsubstituted 4-biphenylylazetidinone with an R<SUP>1</SUP>-substituted phenyl arylating agent. Many of the processes may also be applied to the synthesis of 1,4-diphenylazetidinone deriviatives.