Piperazinoethyl-N-(2,3-dimethyl-5-oxo-1-phenyl-3.DELTA.-pyrazolin- 4-yl)carbamates

US4010161A · kind A · utility

Assignee

• Synthelabo · FR

Inventors

• Don Pierre Rene Lucien Giudicelli · Fontenay-sous-Bois, FR
• Henry Najer · Paris, FR
• Bogdan Iliesco-Branceni · Paris, FR
• Philippe Manoury · L'Haÿ-les-Roses, FR
• Jean Binet · Fontaine-lès-Dijon, FR

Key dates

• Filing date: Dec 20, 1974
• Grant date: Mar 1, 1977
• Expiry date: Dec 20, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D231/50
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula: ##STR1## in which R represents a group of the formula: ##STR2## in which n represents an integer of 1 to 5 and R.sub.1 and R.sub.2, which may be the same or different, each represents a hydrogen atom or a linear or branched, saturated or unsaturated aliphatic hydrocarbon group containing 1 to 5 carbon atoms, or R.sub.1 and R.sub.2, together with the nitrogen atom to which they are attached, form a heterocyclic ring having 5 to 7 ring members, which heterocyclic ring optionally contains a second hetero-atom and/or one or more substituent groups, and their pharmaceutically acception acid addition salts, which compounds and salts are particularly suitable for use as analgesics.