2-(2'-Methoxybenzamido)-4-aminobenzoic acid 、 甲氧基苯甲酰氯 在
alcohol 作用下,
以gave 2,4-bis(2'-methoxybenzamido)-benzoic acid having a melting point between 232° - 233°C which的产率得到2,4-Bis-(2-methoxybenzoylamino)-benzoesaeure
A bis(benzamido)-benzoic acid derivative represented by the formula ##SPC1## Wherein R.sup.1, R.sup.2 and R.sup.3 are as defined hereinbelow and a process for preparing the same is disclosed. The compounds of the invention inhibit hemolysis of sheep red blood cell and cutaneous anaphylactic reaction, and also have an antipyretic sedative, anti-inflammatory and anti-allergic effect and are especially useful for treatment of rheumatic arthritis, bronchial asthma and nephritis.