Compounds of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, A, X and Y are as defined and pharmaceutically acceptable salts thereof; which have activities as leukotriene and Slow Reacting Substance of Anaphalaxis (SRS-a) antagonists or inhibitors, to processes for preparation thereof, to a pharmaceutical composition comprising the same, and to methods of using the same therapeutically in the prevention and/or treatment of allergy or inflamation in human beings or animals.
式中R.sup.1、R.sup.2、R.sup.3、R.sup.4、A、X和Y的化合物:##STR1##及其药学上可接受的盐;具有作为
白三烯和缓激反应物质(SRS-a)拮抗剂或
抑制剂的活性,其制备方法,包括其的制药组合物,以及在人类或动物中在预防和/或治疗过敏或炎症方面的治疗方法。