Cephalosporin compounds

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

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540215, C07D50118, C07D50104

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active

060938137

ABSTRACT:
Cephalosporin derivatives of formula II ##STR1## wherein R.sup.a denotes hydrogen or a silyl group; R.sup.b denotes a group of formula --OR.sup.e, wherein R.sup.e denotes hydrogen or alkyl; and R.sup.c and R.sup.d together denote a bond; in free form or in salt form.

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Peter, Heinrich et al., Helvetica Chimica Acta, vol. 57, No. 7, 1974, pp. 2044-2054.
Cephalosporins & Penicillins, Chemistry & Biology, Ed. E. H. Flynn, Academic Press N.Y. & London, 1972, p. 166.
Hashimoto, T. et al., Chem. Pharm. Bull, 26 (6), 1978, pp. 1803-1811.
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