Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1975-01-02
1977-03-15
Meyers, Albert T.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
C07D26500, C07D27300, C07D29500
Patent
active
040123839
ABSTRACT:
There is described novel substituted .DELTA..sup.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 ##STR1## wherein Q is hydrogen or alkyl and X is amino. Also included in the invention are compounds of the above formula in which the carboxyl group at the 2-position is protected as by an easily cleavable ester group and salts of both the free acids and carboxyl-protected compounds. The compounds and their physiologically hydrolyzed esters and pharmaceutically acceptable salts are useful as intermediates in the preparation of antibacterial agents.
Belleau Bernard R.
Conway Terry T.
Doyle Terrence W.
Luh Bing Yu
Bristol-Myers Company
Meyers Albert T.
Morse David M.
Robinson D. W.
LandOfFree
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