Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Heterocyclic carbon compounds containing a hetero ring...
Patent
1990-12-06
1994-07-26
Rizzo, Nicholas S.
Drug, bio-affecting and body treating compositions
Designated organic active ingredient containing
Heterocyclic carbon compounds containing a hetero ring...
540226, 540227, C07D50136
Patent
active
053327314
ABSTRACT:
A new class of cephalosporin derivatives is provided, which is useful as antibacterial agent to be particularly suitable for oral administrations in mammals including man, and which is represented by general formula (I) ##STR1## wherein R.sup.1 is a hydrogen atom or a lower alkyl group; R.sup.2 is a hydrogen atom or an ester-forming group capable of being cleaved easily with an esterase existing in the digestive tracts; n is an integer of zero or 1; Z is a saturated heterocyclic group containing one or two oxygen atoms as the hetero-atoms with or without one or more lower alkyl substituents, or a pharmaceutically acceptable salt thereof.
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Chemical Abstracts vol. 115:182946m (1992).
Chem. Abstracts, 1991, vol. 114, No. 3, Jan. 21, 1991.
Inoue Shigeharu
Okonogi Tsuneo
Shibahara Seiji
Yamamoto Yuichi
Meiji Seika Kaisha Ltd.
Rizzo Nicholas S.
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