GR76452

• Main Authors: DAVID JAMES LE COUNT, COX, ALLEN J. GUILDFORD, THOMAS P. BLACKBURN, BARRY, CRAIG W. THORNBER, ROBERT J. PEARCE
• Format: Patent
• Language: English
• Published: 10.08.1984
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; HETEROCYCLIC COMPOUNDS; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE; METALLURGY; ORGANIC CHEMISTRY; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES; SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS ORMEDICINAL PREPARATIONS

Compounds of the formula: wherein A stands for the radical -(CH2)2- which may bear one or two defined substituents; R1 stands for a (3-4C) alkyl or cyclopropyl radical, or a phenyl radical which may optionally bear one or two defined substituents, or a heteroaryl radical of five or six ring atoms which may optionally bear a (1-3C)alkyl substituent; R2 and R3 stand for hydrogen or a (1-2C)alkyl radical, or R2 stands for a (2-4C)alkylene radical which is linked to one of the carbon atoms forming the two-carbon-atom-backbone of A so as to form, together with the adjacent nitrogen atom, a pyrrolidinyl or piperidyl radical; and one of R4 and R5 stands for hydrogen, and the other stands for hydrogen, a halogen atom or a (1-3C)alkyl or (1-3C)alkoxy radical; and acid-addition salts thereof. Processes for the manufacture of said compounds. Pharmaceutical compositions comprising one of said compounds and a pharmaceutical diluent or carrier. The compounds are 5-hydroxytryptamine antagonists.