New tricyclic ortho-fused heterocyclic compounds of formula ##STR1## wherein A is the group ##STR2## or the group ##STR3## in which R represents hydrogen, (C.sub.1-4)alkyl, phenyl or tolyl and R.sub.1 and may be (C.sub.1-4)alkyl, phenyl or tolyl, R.sub.2 is selected from (C.sub.1-4)alkyl, (C.sub.2-4)alkanoylmethyl, carbo(C.sub.1-3)alkoxymethyl, hydroxy(C.sub.2-4)alkyl, halo(C.sub.2-4)alkyl and a group ##STR4## wherein R.sub.3 is an alkylene group from 2 to 4 carbon atoms and R.sub.4 and R.sub.5 independently represent hydrogen or (C.sub.1-4)alkyl or, taken together with the nitrogen atom, a fully hydrogenated 5 or 6 membered heterocyclic radical which may contain a further heteroatom selected from O, N and S and be optionally substituted by a (C.sub.1-4)alkyl or phenyl group, or R.sub.2 may represent, nil the dotted lines x and y may represent nil or additional bonds; with the proviso that, when the symbol R.sub.2 linked to the oxygen atom is different from nil, x is an additional bond and y and the other symbol R.sub.2 represent nil; with the further proviso that, when the symbol R.sub.2 linked to the nitrogen atom is different from nil, y is an additional bond and x and the other symbol R.sub.2 represent nil; and salts therewith of pharmaceutically acceptable acids. The compounds possess antiinflammatory, CNS-depressent and anti-anxiety utility.
新的
三环正交融合
杂环化合物的
化学式为 ##STR1## 其中A是基团 ##STR2## 或基团 ##STR3## ,其中R代表氢、(C.sub.1-4)烷基、苯基或
甲苯基,R.sub.1和R.sub.2可以是(C.sub.1-4)烷基、苯基或
甲苯基,R.sub.2选自(C.sub.1-4)烷基、(C.sub.2-4)酰甲基、羧基(C.sub.1-3)烷氧基甲基、羟基(C.sub.2-4)烷基、卤代(C.sub.2-4)烷基和基团 ##STR4## 其中R.sub.3是2到4个碳原子的烷基,R.sub.4和R.sub.5独立地表示氢或(C.sub.1-4)烷基,或与氮原子一起取代完全氢化的5或6成员杂环基团,该杂环基团可以包含进一步的杂原子,选择自O、N和S,并且可以选择性地被(C.sub.1-4)烷基或苯基取代,或R.sub.2可以表示,nil表示点线,x和y可以表示nil或额外的键;但是,当与氧原子连接的符号R.sub.2与nil不同时,x是额外的键,y和另一个符号R.sub.2表示nil;进一步的限定是,当与氮原子连接的符号R.sub.2与nil不同时,y是额外的键,x和另一个符号R.sub.2表示nil;以及与药学上可接受的酸盐一起的盐。这些化合物具有抗炎、中枢神经系统抑制和抗焦虑的用途。