申请人:American Home Products
公开号:US04882323A1
公开(公告)日:1989-11-21
Disclosed herein are novel 1,4-substituted-2,3,5,6-tetrahydro[1,3,6]triazocino[1,2-a]benzimidazole of Formulas I and II: ##STR1## wherein R.sup.1 may be phenyl, m- or p-nitrophenyl, m- or p-methylsulfonylaminophenyl, naphthyl, naphthyl mono-substituted by nitro or methylsulfonylamino, benzofurazanyl, 2-pyrimidinyl, 2- or 4-pyridinyl, 2- or 4-naphthyridinyl, pyrazinyl, isoquinolinyl, or quinolinyl; R.sup.2 may be hydrogen; C.sub.1 -C.sub.8 alkyl; C.sub.1 -C.sub.4 alkylphenyl or C.sub.1 -C.sub.4 alkyl-substituted-phenyl, in which phenyl may have one to three substituents selected from C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, fluorine, chlorine or bromine; phenyl or substituted-phenyl in which the phenyl substituents are the same as for c.sub.1 -C.sub.4 alkyl-substituted-phenyl; 2- or 4-pyrimidinyl; pyrazinyl; imidazolyl; C.sub.1 -C.sub.4 alkanoyl; halo or dihalo-(C.sub.1 -C.sub.4)alkanoyl, in which halo is fluoro or chloro; benzoyl or benzoyl substituted on the phenyl ring by one or two C.sub.1 -C.sub.4 alkyl groups; C.sub.1 -C.sub.4 alkanoyloxy; C.sub.1 -C.sub.4 alkylamino(C.sub.1 -C.sub.4)alkanoyl; C.sub.1 -C.sub.4 alkyloxycarbonyl; C.sub.1 -C.sub.4 alkylaminocarbonyl; phenylaminocarbonyl in which phenyl may have one to three C.sub.1 -C.sub.4 alkyl groups; phenyloxy or naphthyloxy(C.sub.1 -C.sub.4)alkyl in which the phenyl or naphthyl ring may be substituted by one to three C.sub.1 - C.sub.4 alkyl groups; C.sub.1 -C.sub.4 alkylsulfonyl; N-(C.sub.1 -C.sub.4) alkyl- or N-(C.sub.1 -C.sub.4) dialkylcarboxamido(C.sub.1 -C.sub.4)alkyl; N-phenyl or substituted phenyl-carboxamido(C.sub.1 -C.sub.4)alkyl in which phenyl may be substituted as above for C.sub.1 -C.sub.4 alkyl-substituted phenyl; cyano; amidino in which each N atom is substituted by a C.sub.1 -C.sub.4 alkyl group; and C.sub.1 -C.sub.4 alkylguanidino; and R.sup.3 and R.sup.4 are, independently, selected from hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, fluorine and chlorine, or acid addition salts thereof. Compounds of formulas I and II having certain values of R.sup.2 are antiarrhythmic or antiischaemic agents. The remaining values of R.sup.2 provide intermediate compounds of formulas I and II. Also disclosed herein a novel tetrahydro-3-substituted-7-substituted-1H-[1,2,5]triazepino[1,2-a][1,2,4]b enzotriazines, wherein the 7 substituent may be --SMe, .dbd.S, .dbd.O, Cl or Br and the 3 substituent is the same as R.sup.2 in formulas I and II above. These componds also serve as intermediates for the production of the antiarrhythmic agents of formula II above.
本文揭示了新颖的1,4-取代-2,3,5,6-四氢[1,3,6]三唑吲哚[1,2-a]苯并咪唑酮的化合物I和II的结构如下:其中R.sup.1可能是苯基、间或对硝基苯基、间或对甲基磺酰氨基苯基、萘基、萘基单取代的硝基或甲基磺酰氨基、苯并呋喃基、2-嘧啶基、2-或4-吡啶基、2-或4-萘啶基、吡嗪基、异喹啉基或喹啉基;R.sup.2可能是氢、C.sub.1-C.sub.8烷基、C.sub.1-C.sub.4烷基苯基或C.sub.1-C.sub.4取代苯基,其中苯基可能有来自C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、氟、氯或溴的一到三个取代基;苯基或取代苯基,其中苯基取代基与C.sub.1-C.sub.4取代苯基相同;2-或4-嘧啶基;吡嗪基;咪唑基;C.sub.1-C.sub.4酰基;卤代或二卤代-(C.sub.1-C.sub.4)酰基,其中卤是氟或氯;苯甲酰基或苯甲酰基在苯环上取代一个或两个C.sub.1-C.sub.4烷基;C.sub.1-C.sub.4烷酰氧基;C.sub.1-C.sub.4烷基氨基(C.sub.1-C.sub.4)酰基;C.sub.1-C.sub.4烷氧羰基;C.sub.1-C.sub.4烷基氨基羰基;苯基氨基羰基,其中苯基可能有来自C.sub.1-C.sub.4烷基的一到三个取代基;苯氧基或萘氧基(C.sub.1-C.sub.4)烷基,其中苯基或萘基环可能被一到三个C.sub.1-C.sub.4烷基取代;C.sub.1-C.sub.4烷基磺酰基;N-(C.sub.1-C.sub.4)烷基-或N-(C.sub.1-C.sub.4)二烷基羧胺基(C.sub.1-C.sub.4)烷基;N-苯基或取代苯基-羧胺基(C.sub.1-C.sub.4)烷基,其中苯基可能被上述C.sub.1-C.sub.4取代苯基取代;氰基;酰胺基,其中每个N原子被C.sub.1-C.sub.4烷基取代;和C.sub.1-C.sub.4烷基胍胺基;R.sup.3和R.sup.4独立地选择自氢、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、氟和氯,或其酸盐。具有特定R.sup.2值的化合物I和II是抗心律失常或抗缺血药物。R.sup.2的其余值提供化合物I和II的中间体。本文还揭示了一种新颖的四氢-3-取代-7-取代-1H-[1,2,5]三唑二氮杂苯并三嗪,其中7位取代基可能是--SMe、.dbd.S、.dbd.O、氯或溴,3位取代基与上述化合物I和II中的R.sup.2相同。这些化合物也可用作上述抗心律失常药物的中间体的生产。