| 摘要 |
Indole derivatives of the formula: <IMAGE> I wherein R1 represents a hydrogen atom or a methyl radical, R2 and R3, which are the same or different, each represent a hydrogen atom, a methyl or ethyl radical, a benzyl radical or represent together a pentamethylene, hexamethylene, oxydiethylene or N-methylaminodiethylene chain, forming thus a cycle with the nitrogen atom, R4 represents a phenyl, 2', 4'-dimethyl-phenyl, isopropyl, cyclopropyl, 1-methyl-cyclopropyl, cyclopentyl or cyclohexyl radical, R5 represents a hydrogen atom, a branched- or straight-chain alkyl radical containing from 1 to 3 carbon atoms, a methylthio or ethylthio radical or a straight-chain acyl radical containing from 2 to 6 carbon atoms, R6 represents a hydrogen atom or a halogen atom, a methyl, methoxy, hydroxy, carboxy, nitro, amino, methylamino or dimethylamino radical, R7 represents a hydrogen atom or a halogen atom and n is 1 or 2, with the proviso that two at least of the groups R5, R6 and R7 represent a hydrogen atom and that, when n is 2, one at least of the groups R2 and R3 is not a hydrogen atom, and their pharmaceutically acceptable acid addition salts.
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