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Inventor: Chiba; Katsumi
Address: Osaka, JP
No. of patents: 4
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 6017911 |
Pyridonecarboxylic acid derivatives and intermediates for the synthesis thereof |
January 25, 2000 |
| This invention relates to pyridonecarboxylic acid derivatives of the following general formula, esters thereof and salts thereof, as well as pharmaceutical preparations containing them. ##STR1## wherein: R is cycloalkyl which may be substituted by halogen, or the like;X is hydrogen, |
| 5990106 |
Bicyclic amino group-substituted pyridonecarboxylic acid derivatives, esters thereof and salts t |
November 23, 1999 |
| This invention relates to bicyclic amino group-substituted pyridonecarboxylic acid derivatives of the general formulaesters thereof and salts thereof, wherein: Pri is a pyridonecarboxylic acid residue, and A is a bicyclic amino group represented by the following formula and joined to the |
| 5817669 |
Compounds, processes for the preparation thereof and anti-tumor agents |
October 6, 1998 |
| This invention relates to pyridone-carboxylic acid derivatives of the following formula or salts thereof: ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom, etc.,R.sub.2 is a carboxyl group etc.,R.sub.3 is a hydrogen atom etc.,A is a nitrogen atom or CH,m is 1 or 2, andY is an |
| 4738968 |
1,8-naphthyridine derivatives useful as anti-bacterial agents |
April 19, 1988 |
| The present invention relates to a 1,8-naphthyridine derivative of the formula ##STR1## wherein X is a fluorine or chlorine atom, and R is a hydrogen atom, or a methyl or ethyl group;and esters thereof and salts thereof are processes for preparation thereof. These compounds show |
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