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US 4,791,225 AGranted
Halogenobenzoic acid derivatives and their preparation
AssigneeKyorin Pharmaceutical Co., Ltd.
InventorsTsutomu Irikura, Seigo Suzue, Satoshi Murayama, Keiji Hirai, Takayoshi Ishizaki
Life of this patent
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Abstract
The present invention is concerned with certain novel halogenobenzoic acid derivatives of the following formula, ##STR1## wherein R is a chlorine atom, amino group or hydroxy group, X is a chlorine atom or bromine atom, which are useful intermediates for the synthesis of antibacterial agent.
Claims1
A compound of the formula (I);
- ##STR5## wherein R is a chlorine atom, amino group or hydroxy group, X is a chlorine or bromine atom.
Dependencies are inferred from the claim text.