Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1976-08-19
1978-01-10
Myers, Jane S.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
C07D26534
Patent
active
040680789
ABSTRACT:
There is described the stereoselective total synthesis of novel .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 Z is halo, hydroxyl, etherified hydroxyl or hydroxyl esterified with a carboxylic acid residue or a sulfonic acid residue and X is amino, azido or acylamino. Also included in the invention are compounds of formula I 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 of formula I. The compounds of formula I are potent antibacterial agents or are of use as intermediates in the preparation of such antibacterial agents.
REFERENCES:
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Conway Terry T.
Lim Gary M. F.
Menard Marcel
Bristol-Myers Corporation
Morse David M.
Myers Jane S.
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