Cis-4-oxoazetidine intermediates and methods of preparing them

Details Cis-4-oxoazetidine intermediates and methods of preparing them Cis-4-oxoazetidine intermediates and methods of preparing them

1976-06-14

1978-02-07

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260307F, 260308D, 260326S, 26032637, 2603322H, 560 35, 560174, 544 47, C07D20508, C07D40312, C07D40912

Patent

active

040726746

ABSTRACT:
The stereospecific cycloaddition of nitrogen containing acetic acid halides or anhydrides with Schiff bases having a carbalkoxy group substituted on the methine carbon atom offers new intermediates and methods for preparing synthetic cephalosporin congeners having antibacterial activity.

REFERENCES:
patent: 3943123 (1976-03-01), Bose
Bose et al. Tet. Letter 26, 2319-2320 (1973).
Needles et al. J. Org. Chem. 29, 3632-3634 (1964).

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