Methods and intermediates for preparing cis-4-oxoazetidine inter

Details Methods and intermediates for preparing cis-4-oxoazetidine inter Methods and intermediates for preparing cis-4-oxoazetidine inter

1977-08-03

1979-09-04

Berch, Mark L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260326N, 548230, C07D20508, C07D40304

Patent

active

041668162

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
Mukerjee et al., Synthesis, (1973), pp. 334-337.
Weissberger, Heterocyclic Compounds, vol. 19, pt. 2, pp. 937-939 (1964).
Bose et al. I, Tet. Letters 1973, 2319-2320.
Bose et al. II, Chem. Abs. 79, 31750e, (1973).

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