3-substituted-hexahydro-pyrimido[1,2-a] azepins, process for...

Details 3-substituted-hexahydro-pyrimido[1,2-a] azepins, process for... 3-substituted-hexahydro-pyrimido[1,2-a] azepins, process for...

C - Chemistry, Metallurgy

07

D

260/241.1

C07D 487/04 (2006.01)

Patent

CA 1143729

Abstract of the Disclosure The present invention relates to pyrimido[1,2-a]azepine derivatives of the general formula I or II Image (I) and (II) Image and a mixture thereof and pharmaceutically suitable acid addition salts and quaternary salts thereof wherein R stands for hydrogen or lower alkyl, R1 stands for lower alkyl, phenyl, carboxyl, lower alkoxycarbonyl, nitrile, carbamoyl or carbohydrazido, R2 stands for hydrogen or lower alkyl with the proviso that if in the general formula I R2 stands for hydrogen then R1 cannot stand for nitrile, alkoxycarbonyl or propyl. The compounds of formulae I and II are mainly useful as intermediates in the preparation of valuable pharma- ceutically active compounds but some of the compounds display useful anti- anginal properties. The invention also provides a process for preparing the novel compounds.

351665

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