Compounds of formula (I) ##STR1## wherein n is 0, 1 or 2; one or R.sup.1 and R.sup.2 is hydrogen and the other is selected from carbamoyl, N-C.sub.1-4 alkylcarbamoyl, N,N-di-C.sub.1-4 alkylcarbamoyl, carbamimidoyl, N.sup.1 -C.sub.1-4 alkylcarbamimidoyl, N.sup.2 -C.sub.1-4 alkylcarbamimidoyl, N.sup.1 -C.sub.1-4 alkyl-N.sup.2 -C.sub.1-4 alkylcarbamimidoyl, N.sup.1,N.sup.1 -di-C.sub.1-4 alkylcarbamimidoyl, N.sup.1,N.sup.1 -di-C.sub.1-4 alkyl-N.sup.2 -C.sub.1-4 alkylcarbamimidoyl and imidazolin-2-yl (optionally substituted by one or more C.sub.1-4 alkyl groups); and R.sup.3 is selected from hydrogen, saturated and unsaturated aliphatic hydocarbon moieties containing from 1 to 4 carbon atoms, groups OR.sup.4 (where R.sup.4 is selected from hydrogen and saturated and unsaturated aliphatic hydrocarbon moieties containing from 1 to 4 carbon atoms), halo, groups of formula--NR.sup.5 R.sup.6 (where R.sup.5 and R.sup.6 are independently selected from hydrogen, C.sub.1-4 alkyl and hydroxy C.sub.1-4 alkyl, provided that the total number of carbon atoms in R.sup.5 and R.sup.6 does not exceed 4), amino C.sub.1-4 alkylamino and morpholino, provided that when n is 2 and R.sup.2 is hydrogen, then R.sup.1 is not carbamoyl when R.sup.3 is hydrogen or methyl; and R.sup.1 is not N-methylcarbamoyl when R.sup.3 is hydrogen; and physiologically acceptable salts thereof, and their pro-drugs and metabolites are inhibitors of monoamine oxidase-A and are useful in the prophylaxis and treatment of mental disorders such as depression.
化合物的公式(I)##STR1## 其中n为0、1或2;R.sup.1和R.sup.2中的一个为氢,另一个选自carbamoyl、N-C.sub.1-4 alkylcarbamoyl、N,N-di-C.sub.1-4 alkylcarbamoyl、carbamimidoyl、N.sup.1-C.sub.1-4 alkylcarbamimidoyl、N.sup.2-C.sub.1-4 alkylcarbamimidoyl、N.sup.1-C.sub.1-4 alkyl-N.sup.2-C.sub.1-4 alkylcarbamimidoyl、N.sup.1,N.sup.1-di-C.sub.1-4 alkylcarbamimidoyl、N.sup.1,N.sup.1-di-C.sub.1-4 alkyl-N.sup.2-C.sub.1-4 alkylcarbamimidoyl和
咪唑啉-2-基(可选地取代一个或多个C.sub.1-4 alkyl基);R.sup.3选自氢、含有1至4个碳原子的饱和和不饱和脂肪族碳氢基团、OR.sup.4(其中R.sup.4选自氢和含有1至4个碳原子的饱和和不饱和脂肪族碳氢基团)、卤素、公式--NR.sup.5 R.sup.6的基团(其中R.sup.5和R.sup.6独立地选自氢、C.sub.1-4 alkyl和羟基C.sub.1-4 alkyl,前提是R.sup.5和R.sup.6中的碳原子总数不超过4)、
氨基C.sub.1-4 alkylamino和morpholino,前提是当n为2且R.sup.2为氢时,当R.sup.3为氢或甲基时,R.sup.1不为carbamoyl;当R.sup.3为氢时,R.sup.1不为N-methylcarbamoyl;以及它们的生理学上可接受的盐,它们的前药和代谢物是单胺氧化酶A的
抑制剂,可用于预防和治疗抑郁等精神障碍。