New isoindoloindolone derivatives as e.g. melatonin receptor (ant)agonists, useful for e.g. the treatment of melatoninergic system disorders, sleep disorders, stress, anxiety, seasonal depression, and cardiovascular disorders

摘要

Compound of formula (I):wherein:R1, R2, R3, R4, R5, R6 and R8, which may be identical or different, each represents hydrogen, alkyl, arylalkyl, hydroxy, alkoxy, arylalkoxy, acyloxy, arylcarbonyloxy, carboxyalkyl or carboxy,R7 represents hydrogen, hydroxy, alkoxy, arylalkoxy, acyloxy or arylcarbonyloxy group,or one of R1 to R8, together with another of R1 to R8 adjacent to it, forms an alkylenedioxy,its optical isomers, and addition salts thereof with a pharmaceutically acceptable acid or base.