Antichofinergic 3-[2-(mono- and dialkylamino)-propyl]-1,2,3,4-tetrahydro-5H-[1]benzopyrano [3,4-c]-pyridin-5-ones, useful for treating bronchospastic diseases in mammals, are disclosed. Also disclosed are processes for preparing the compounds, and pharmaceutical compositions containing them. The novel compounds have the following formula:
where X is a lower alkyl radial, Y is hydrogen or a lower alkyl, and R', R2 and R3 are, separately, hydrogen atoms or substituents.
A process for preparing the intermediate which is required to prepare the unsubstituted benzopyrano-[3,4-c]pyridin-5- ones of the present invention is also disclosed
本发明公开了可用于治疗哺乳动物支气管痉挛性疾病的抗
胆碱能 3-[2-(单烷基和二烷基
氨基)-丙基]-1,2,3,4-四氢-5H-[1]苯并
吡喃并[3,4-c]
吡啶-5-酮。 还公开了制备这些化合物的工艺和含有这些化合物的药物组合物。 这些新型化合物具有下式:其中 X 是低级烷基径向,Y 是氢或低级烷基,R'、R2 和 R3 分别是氢原子或取代基。 还公开了制备本发明未取代苯并
吡喃并[3,4-c]
吡啶-5-酮所需的中间体的工艺