Process for preparing acetoxyazetidinone derivative and intermed

Details Process for preparing acetoxyazetidinone derivative and intermed Process for preparing acetoxyazetidinone derivative and intermed

1996-11-05

1998-11-03

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Chalcogen in the nitrogen containing substituent

540357, 540362, 544 50, 544287, 560170, 567253, C07D20500

Patent

active

058310916

ABSTRACT:
##STR1## wherein Ring B represents a benzene ring which may be substituted; W represents oxygen atom or sulfur atom; Y represents oxygen atom, sulfur atom or N R.sup.0, R.sup.0 represents hydrogen atom or a substituent; Z represents a substituted methylene group which contains at least one chiral center; R.sup.5 represents an aralkyloxycarbonyl group or an alkoxycarbonyl group; R.sup.6 represents hydrogen atom, an aralkyl group, an acyloxy group, a tri-substituted silyloxy group or an alkoxy group; or both of R.sup.5 and R.sup.6 bond at their termini and combine with the adjacent nitrogen atom to form phthalimido group, and a process thereof .beta.-lactam antibacterial agents.

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