Melatonin derivatives and medicine containing same

摘要

The invention concerns melatonin derivatives of formula (I) wherein: R1 represents H, a C1-C4 alkyl group or a C1-C4 alkoxy group; R2 represents H or a C1-C4 alkyl group; R3 represents H, methyl or a halogen atom; R4, R5 represent individually H or a halogen atom; R6 represents H or a C1-C4 alkyl group, or a pharmaceutically acceptable salt thereof. The invention also concerns a medicine comprising said derivatives.