HALOGENOBENZOIC ACID DERIVATIVES AND THEIR PREPARATION

摘要

Title of the invention : Halogenobenzoic acid derivatives and their preparation of the invention : The present invention is concerned with certain novel halogenobenzoic acid derivatives of the following formula, 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.