申请人:Boehringer Ingelheim KG
公开号:US04686219A1
公开(公告)日:1987-08-11
Compounds of the formula ##STR1## wherein R.sub.1 and R.sub.2, which may be identical to or different from each other, are each hydrogen, fluorine, chlorine, bromine, trifluoromethyl, hydroxyl, nitro, amino, cyano, methylsulfonamido, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 3 carbon atoms, (alkyl of 1 to 3 carbon atoms)thio or (alkanoyl of 2 to 4 carbon atoms)amino; R.sub.3 is hydrogen, fluorine, chlorine, bromine or alkyl of 1 to 3 carbon atoms; R.sub.4 is hydrogen, alkyl of 1 to 4 carbon atoms, hydroxy(alkyl of 2 to 4 carbon atoms), (alkoxy of 1 to 2 carbon atoms)-(alkyl of 2 to 4 carbon atoms), alkenyl of 3 to 6 carbon atoms, alkynyl of 3 to 6 carbon atoms, cycloalkyl of 3 to 7 carbon atoms, (cycloalkyl of 3 to 7 carbon atoms)-(alkyl of 1 to 3 carbon atoms) or (unsubstituted or substituted phenyl)-(alkyl of 1 to 3 carbon atoms) where the substituent is fluorine, chlorine, bromine, methyl, methoxy, hydroxyl or trifluoromethyl; and n is 1 or 2; and non-toxic, pharmacologically acceptable acid addition salts thereof. The compounds as well as their salts are useful as antiallergic.
化合物的公式为##STR1##其中R.sub.1和R.sub.2可以相同也可以不同,分别是氢、氟、氯、溴、三氟甲基、羟基、硝基、氨基、氰基、甲基磺酰胺基、1至4个碳原子的烷基、1至3个碳原子的烷氧基、(1至3个碳原子的烷基)硫或(2至4个碳原子的酰基)氨基;R.sub.3是氢、氟、氯、溴或1至3个碳原子的烷基;R.sub.4是氢、1至4个碳原子的烷基、(2至4个碳原子的烷基)羟基、(1至2个碳原子的烷氧基)-(2至4个碳原子的烷基)、3至6个碳原子的烯基、3至6个碳原子的炔基、3至7个碳原子的环烷基、(3至7个碳原子的环烷基)-(1至3个碳原子的烷基)或(未取代或取代的苯基)-(1至3个碳原子的烷基),其中取代基是氟、氯、溴、甲基、甲氧基、羟基或三氟甲基;n为1或2;以及其非毒性、药理学上可接受的酸盐。这些化合物及其盐可用作抗过敏药物。