申请人:Asahi Kasei Kogyo Kabushiki Kaisha
公开号:US04166128A1
公开(公告)日:1979-08-28
Novel substituted phenylglycolic acid represented by the formula ##STR1## AND ITS PHARMACEUTICALLY ACCEPTABLE NON-TOXIC ESTERS AND SALTS HAVE POTENT ANALGESIC, ANTI-INFLAMMATORY AND ANTIPYRETIC ACTIVITIES, A LOW TOXICITY AND A SATISFACTORY THERAPEUTIC INDEX, AND CAN BE FAVORABLY EMPLOYED AS A MEDICINE FOR TREATMENT OF VARIOUS INFLAMMATORY DISEASES SUCH AS ARTHRITIS, COMMON COLD, RHEUMATISM AND LIKE INFLAMMATIONS AND ALSO FOR ANALGESIC AND ANTIPYRETIC PURPOSES. The substituted phenylglycolic acid is prepared by reacting a lower alkyl ester of 2-(2,6-dichloroanilino)phenylglycolic acid with a basic substance, which lower alkyl ester is also a novel compound and can be obtained starting from 1-(2,6-dichlorophenyl)indole-2,3-dione through 2-(2,6-dichloroanilino)phenylglyoxylic acid and, in turn, a lower alkyl ester of 2-(2,6-dichloroanilino)-phenylglyoxylic acid.
该专利描述了一种代表公式##STR1##的新型取代苯基乙酸及其医药上可接受的无毒酯和盐,具有强效的镇痛、抗炎和退热活性,低毒性和令人满意的治疗指数,并可作为治疗各种炎症性疾病(如关节炎、普通感冒、风湿病和类似炎症)以及镇痛和退热的药物。该取代苯基乙酸是通过将2-(2,6-二氯苯氨基)苯基乙酸的较低烷基酯与碱性物质反应制备的,该较低烷基酯也是一种新化合物,可以从1-(2,6-二氯苯基)吲哚-2,3-二酮开始制备,通过2-(2,6-二氯苯氨基)苯基乙酸和2-(2,6-二氯苯氨基)苯基乙酸的较低烷基酯制备而成。