Cepham derivatives

Details Cepham derivatives Cepham derivatives

1976-01-12

1978-04-11

Rizzo, Nicholas S.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 18, 544 30, 424246, 2602391, C07D50110, C07D50120

Patent

active

040840492

ABSTRACT:
A compound of the formula ##STR1## wherein R' is amino or a conventional, pharmaceutically acceptable acylamino, R.sup.2 is carboxy or a conventionally protected carboxy, X is -S- or ##STR2## R.sup.3 is lower alkyl and Y" is a residue of a strong nucleophile selected from the group consisting of azido and arylamino.

REFERENCES:
patent: 3954732 (1976-05-01), Kamiya et al.
patent: 3993646 (1976-11-01), Kamiya et al.

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