Arylalkyl(thio) carboxamides compounds with affinity for melatonine receptors, processes for their preparation and pharmaceutical compositions containing them

摘要

Arylalkyl (thio)carboxamides of formula (I) A-B-C(=X)-NH-R1 their enantiomers and diastereoisomers and their salts, are new except for N-methyl-3-(4-methoxy-naphth-1-yl)propionamide or N-tert. butyl-3-carboxy-4-(naphth-1-yl)butyramide. In (I), A = a gp. of formula (i); Het Y gp. = (dihydro)naphthalene, tetrahydronaphthalene, (2,3-dihydro)benzofuran, (2,3-dihydro)benzothiophene, indole, indoline, 2H-indene or indane; Ra-Rc = H, halo, OH, Rd or ORd; Rd = alkyl (opt. substd by halo, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, opt. substd. aryl or opt. substd. aralkyl) or CRa+CRb = (dihydro)furan or (dihydro)pyran, opt. substd by OH, alkyl, alkoxy or oxo); B is a 2-6 membered alkylene chain opt. substd by alkyl, alkoxy, OH, carboxy, alkoxycarbonyl, carboxyalkyl, and alkoxycarbonylalkyl; X = O or S; and R1 = alkyl, halo-substd alkyl, alkenyl, alkynyl, cycloalkyl or cycloalkylalkyl; with provisos.