abstract |
Melatonin derivative of formula ** FORMULA ** in which: R1 represents H, a C1 to C4 alkyl group or a C1 to C4 alkoxy group. R2 represents H or a C1 to C4 alkyl group R3 represents H, methyl or a halogen atom, R4, R5 individually represents H or a halogen atom, R6 represents H or a C1-C4 alkyl group or salt pharmaceutically acceptable of this. |