3-pyrazolo(1,5-a.alpha.pyridinium cephem compounds

Details 3-pyrazolo(1,5-a.alpha.pyridinium cephem compounds 3-pyrazolo(1,5-a.alpha.pyridinium cephem compounds

1985-05-30

1987-05-12

Warden, Robert J.

Textiles: spinning, twisting, and twining

540222, A61K 31545, C07D50146

Patent

active

046650652

ABSTRACT:
A compound of the formula; ##STR1## wherein R.sup.0 stands for hydrogen atom, nitrogen-containing heterocyclic group, acyl group or amino-protecting group, Z stands for S, S.fwdarw.O, O or CH.sub.2, R.sup.4 stands for hydrogen atom, methoxy group or formamido group, R.sup.13 stands for hydrogen atom, methyl group, hydroxyl group or halogen atom and A stands for an optionally substituted pyrazol-2-yl group forming a fused ring at the 1,5-position or a physiologically or pharmaceutically acceptable salt or ester thereof.
This compound is novel and has excellent antibacterial activity.

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patent: 4278671 (1981-07-01), Ochiai et al.
patent: 4278793 (1981-07-01), Durckheimer et al.
patent: 4500526 (1985-02-01), Imae
patent: 4501739 (1985-02-01), Lunn

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