1,6-NAPHTHYRIDIN-DERIVATE,VERFAHREN ZU DEREN HERSTELLUNG UND DIESE ENTHALTENDE ARZNEIMITTEL ZUR BEHANDLUNG VON GEFAESSERKRANKUNGEN.

摘要

1,6-Naphthyridine derivs. of formula (I) and their salts are new where R1 = opt. substd., opt. fused aryl or heteroaryl; R2 = 1-4C alkyl or benzyl; R3 = H, 1-4C alkyl or 2-4C alkoxycarbonyl; R4 = (a) 1-21C hydrocarbyl, opt. contg. O, S, N or halogen atoms and opt. substd. by carbocyclic or heterocyclic ring systems, or (b) NH2, CN, CHO or dihalomethyl; R5 = (a) 2-21C alkoxycarbonyl or opt. substd. carbamoyl, opt. contg. O, S or N atoms and opt. substd. by carbocyclic or heterocyclic ring systems, or (b) COOH.