3-Carboxyisocoumarins, 2-thiaisocoumarins and related isocarbostyrils are useful anti-allergic agents. Several of these compounds are novel, and a process for their preparation is provided.
3-羧基异
香豆素、2-
硫代异
香豆素及相关的异羧基
苯乙烯衍
生物是有用的抗过敏药物。其中几种化合物是新颖的,并提供了它们的制备方法。