申请人:Boehringer Ingelheim GmbH
公开号:US03987186A1
公开(公告)日:1976-10-19
Compounds of the formula ##SPC1## Wherein the R.sub.1 ' s are hydrogen, alkyl of 1 to 3 carbon atoms or together a double-bonded oxygen, R.sub.2 is hydrogen, fluorine, chlorine, methyl, hydroxyl, methoxy, hydroxy-ethoxy, nitro or --SO.sub.3 H, R.sub.3 is hydrogen, fluorine, chlorine or methoxy, R.sub.4 is hydrogen, methyl or methoxy, R.sub.5 is hydrogen, fluorine, chlorine or methyl, and R.sub.6 is hydrogen or alkyl of 1 to 8 carbon atoms, and, when R.sub.6 is hydrogen, salts thereof formed with an inorganic or organic base; the compounds as well as the salts are useful as antiallergics.
式为##SPC1##的化合物,其中R.sub.1 '为氢、1至3个碳原子的烷基或与双键氧一起,R.sub.2为氢、氟、氯、甲基、羟基、甲氧基、羟基乙氧基、硝基或--SO.sub.3 H,R.sub.3为氢、氟、氯或甲氧基,R.sub.4为氢、甲基或甲氧基,R.sub.5为氢、氟、氯或甲基,R.sub.6为氢或1至8个碳原子的烷基,当R.sub.6为氢时,与无机或有机碱形成的盐;这些化合物以及盐可用作抗过敏药物。