| abstract |
Racemic and optically active compounds of the formula Q-CnH2n-NH-R wherein Q is < IMAGE > where R1 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, trifluoromethyl or amino, R2 is hydrogen, halogen, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms or trifluoromethyl, R1 and R2, together with each other, are methylenedioxy or ethylenedioxy, and A is -O-, -CH2-CH2-, -O-CH2- where the oxygen is bonded to the benzene ring, or -NR3- where R3 is hydrogen or alkyl of 1 to 4 carbon atoms, N IS AN INTEGER FROM 2 TO 6, INCLUSIVE, AND R is hydrogen, benzyl or < IMAGE > where R4 is hydrogen, methyl or ethyl, R5, R6 and R7, which may be identical to or different from each other, are each hydrogen, halogen, hydroxymethyl, trifluoromethyl, alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, nitro, cyano, -CONHR3, -CONHOH, -COOR3, R8O-, methylsulfonylmethyl or, when one or two of R5 through R7 are other than halogen or trifluoromethyl, also -NR3R9, where R3 has the meanings defined above, R8 is hydrogen, alkanoyl of 1 to 20 carbon atoms, alkyl of 1 to 4 carbon atoms or aralkyl, and R9 is hydrogen, lower alkanoyl, methanesulfonyl, carbamoyl, dimethylsulfamoyl, or alkoxycarbonyl of 2 to 5 carbon atoms, and R5 and R6, together with each other, are -O-CH2-O, -O-CH2-CH2-O-, -CH=CH-CH=CH-, -O-CH2-CONH-, -CH2-CH2-CONH- or -O-CO-NH-, and non-toxic, pharmacologically acceptable acid addition salts thereof the compounds as well as their salts are useful as vasodilators and CNS-stimulators. |