申请人:American Home Products Corporation
公开号:US04935515A1
公开(公告)日:1990-06-19
Disclosed herein are novel 1,2,3,4,5,6-hexahydro[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, napthtyl, 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; phenyl(C.sub.1 -C.sub.4)alkyl or substituted-phenyl(C.sub.1 -C.sub.4)alkyl, 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 substituted-phenyl (C.sub.1 -C.sub.4)alkyl; 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; (C.sub.1 -C.sub.4)alkyl- or N-di-(C.sub.1 -C.sub.4 alkyl)carboxamido(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]be nzotriazines, wherein the 7 substituent may be --SMe, --Cl or Br and the 3 substituent is the same as R.sup.2 in formulas I and II above. These compounds also serve as intermediates for the production of the antiarrhythmic agents for formula II above.
本文披露了新型的1,2,3,4,5,6-六氢[1,3,6]三唑环[1,2-a]苯并咪唑的I和II式:其中R.sup.1可能是苯基,m-或p-硝基苯基,m-或p-甲基磺酰氨基苯基,萘基,萘单取代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-萘啉基,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;苯基(C.sub.1-C.sub.4)烷基或取代的苯基(C.sub.1-C.sub.4)烷基,其中苯基可以有一到三个来自C.sub.1-C.sub.4烷基,C.sub.1-C.sub.4烷氧基,氟,氯或溴的取代基;苯基或取代苯基,其中苯基取代基与取代苯基(C.sub.1-C.sub.4)烷基相同;2-或4-嘧啶基;吡嗪基;咪唑基;C.sub.1-C.sub.4烷酰基;卤代或二卤代-(C.sub.1-C.sub.4)烷酰基,其中卤是氟或氯;苯甲酰基或在苯环上被一或两个C.sub.1-C.sub.4烷基取代的苯甲酰基;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烷酰基;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,其中苯基可能有一到三个C.sub.1-C.sub.4烷基取代基;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烷基取代基取代;C.sub.1-C.sub.4烷基磺酰基;(C.sub.1-C.sub.4)烷基-或N-二(C.sub.1-C.sub.4烷基)羧酰胺基(C.sub.1-C.sub.4)烷基;N-苯基或取代苯基-羧酰胺-(C.sub.1-C.sub.4)烷基,其中苯基可以像上述的C.sub.1-C.sub.4烷基取代苯基一样被取代;氰基;两个N原子被C.sub.1-C.sub.4烷基取代的氨基甲酸酰基;和C.sub.1-C.sub.4烷基脲基;以及R.sup.3和R.sup.4独立地选自氢,C.sub.1-C.sub.4烷基,C.sub.1-C.sub.4烷氧基,氟和氯,或它们的酸加成盐。具有特定R.sup.2值的I和II式化合物是抗心律失常或抗缺血剂。其余的R.sup.2值提供了I和II式中间体化合物。本文还披露了一种新型的四氢-3-取代-7-取代-1H[1,2,5]三唑环[1,2-a][1,2,4]苯并三嗪,其中7取代基可以是--SMe,--Cl或Br,而3取代基与上述I和II式中的R.sup.2相同。这些化合物也用作上述II式抗心律失常剂的中间体。