6-Substituted-4-hydroxycinnolin-3-yl carboxylic acids and esters thereof, processes for their preparation, and pharmaceutical compositions comprising any one of these compounds. A representative compound is ethyl 6-glycylamino-4-hydroxycinnolin-3-yl carboxylate hydrochloride. The compounds are active as inhibitors of effects following the combination of reagin-like antibodies and their antigens.
6-取代-
4-羟基喹啉-3-基
羧酸及其
酯类,其制备方法以及包含任何这些化合物的制药组合物。代表化合物为乙酰基6-甘
氨基-
4-羟基喹啉-3-基
羧酸酯盐酸盐。这些化合物作为抑制类似于
抗体和它们的抗原结合后产生的效应的活性物质。