0-2-isocephem antibacterial agents and processes and...

Details 0-2-isocephem antibacterial agents and processes and... 0-2-isocephem antibacterial agents and processes and...

C - Chemistry, Metallurgy

07

D

260/244.7

C07D 498/04 (2006.01)

Patent

CA 1113466

ANTIBACTERIAL AGENT ABSTRACT OF THE DISCLOSURE The present invention provides for the stereoselective total synthesis of certain novel subststuted .DELTA. 2,3-1,4-morpholine- 2-carboxylic acids possessing a fused .beta.-lactam ring in the 1.6-position and carrying a substituent cis to carbon .5 in the 7-position of the fused ring system represented by the general formula Image wherein Q is hydrogen, alkyl, aralkyl or -CH2COOZ where Z is hydrogen or the residue of an ester group and X is azido, amino or acylamino. When X is acyl- amino, these acids (and their pharmaceutically accepe- able salts and physlologically hydrolysed esters) are potent antibacterial agents. This divisional is directed to intermediate products used in the above preparation.

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