| 摘要 |
Compounds of the formula WHEREIN R1, R2 and R3, which may be identical to or different from each other, are each hydrogen, fluorine, chlorine, bromine, methyl, ethyl, ethoxy, trifluoromethyl or cyano, and R4 and R5, which must be different, are each hydrogen, WHERE R6 and R7, which may be identical to or different from each other, are each hydrogen, methyl or optionally substituted phenyl, or, together with each other, ethylene or propylene, R8 and R9, which may be identical to or different from each other, are each hydrogen, halogen, methyl or nitro, A is nitrogen or -CH-, and N IS 0 OR 1, AND NON-TOXIC, PHARMACOLOGICALLY ACCEPTABLE ACID ADDITION SALTS THEREOF; THE COMPOUNDS AS WELL AS THE SALTS ARE USEFUL AS HYPOTENSIVES. |
