Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1981-01-26
1990-06-05
Ceperley, Mary E.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540223, 540229, 540230, C07D50114
Patent
active
049315552
ABSTRACT:
A process for producing a 2-cephem or 3-cephem derivative compound of the formula: ##STR1## wherein R.sub.1 represents a substituted or unsubstituted amino radical and R.sub.4 represents hydrogen or a radical selected from the group consisting of carboxy, protected carboxy, ester, acid amide, acid anhydride, acid halide, acid azide and carboxy salt, and the dotted line indicates the alternate bond structure providing 3-cephem or 2-cephem, which comprises:
REFERENCES:
patent: 3963712 (1976-06-01), Koyama et al.
Hashimoto Masashi
Kamiya Takashi
Nakaguit Osamu
Nakamura Hitoshi
Oku Teruo
Ceperley Mary E.
Fujisawa Pharmaceutical Company, Ltd.
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