申请人:EGYT Gyogyszervegyeszeti Gyar
公开号:US04316022A1
公开(公告)日:1982-02-16
The invention relates to new benzo-as-triazine derivatives of the formulae (I) and (Ia) and pharmaceutically acceptable acid addition salts thereof, ##STR1## wherein R.sub.1 and R.sub.2 each represent hydrogen, a C.sub.1-20 alkylcarbonyl group, a phenylcarbonyl or phenyl-(C.sub.1-4 alkyl)-carbonyl group having optionally one or more halogen, hydroxy or C.sub.1-3 alkoxy substituents which may be the same or different, furthermore a pyridylcarbonyl, a pyrazinylcarbonyl, a furylcarbonyl, a chloroacetyl or a C.sub.1-4 alkoxycarbonyl group, or R.sub.1 and R.sub.2 may form, together with the adjacent nitrogen atoms, a pyrazole ring having optionally a C.sub.1-6 alkyl substituent in position 4, with the proviso that one of R.sub.1 and R.sub.2 is always different from hydrogen, R.sub.3 stands for hydrogen, mercapto group, a C.sub.1-4 alkylmercapto group, amino group, a C.sub.1-4 alkylamino group, a piperazino group having optionally an N-alkyl or 2-pyridyl substituent, a morpholino group or a piperidino group, and R.sub.4 stands for hydrogen, halogen, C.sub.1-4 alkyl or C.sub.1-4 alkoxy group. The compounds of the formulae (I) and (Ia) are prepared by acylating the respective 2,4,5-unsubstituted 4,5-dihydro-benzo-as-triazine derivatives. The new compounds of the formulae (I) and (Ia) possess analgesic, antiphlogistic and narcosis-potentiating effects.
本发明涉及一种新的苯并三氮唑衍生物及其药学上可接受的酸加成盐,其化学式为(I)和(Ia),其中R1和R2分别表示氢、C1-20烷基羰基、苯基羰基或苯基-(C1-4烷基)-羰基,其中选有一个或多个卤素、羟基或C1-3烷氧基取代基,这些取代基可以相同或不同,此外,还可以是吡啶基羰基、吡嗪基羰基、呋喃基羰基、氯乙酰基或C1-4烷氧基羰基,或者R1和R2可以与相邻的氮原子一起形成一个吡唑环,其中位置4可选有C1-6烷基取代基,但R1和R2中的一个始终不同于氢,R3代表氢、巯基、C1-4烷基巯基、氨基、C1-4烷基氨基、具有可选的N-烷基或2-吡啶基取代基的哌嗪基、吗啉基或哌啶基,R4代表氢、卤素、C1-4烷基或C1-4烷氧基。通过酰化相应的2,4,5-未取代的4,5-二氢苯并三氮唑衍生物制备化合物(I)和(Ia)。化合物(I)和(Ia)具有镇痛、抗炎和麻醉增强作用。