.DELTA..sup.3 -3-Vinyl or substituted vinyl-4-carboxy cephalospo

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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544 22, 544 29, 424246, A61K 31545

Patent

active

041074319

ABSTRACT:
The invention is concerned with .DELTA..sup.3 -4-carboxy cephalosporin antibiotics possessing a 3-vinyl or substituted 3-vinyl groups as well as with phosphorous intermediates useful in the preparation thereof.

REFERENCES:
patent: 3994884 (1976-11-01), Weir

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