Patent · US Active

Method for the preparation of N-piperidino-1, 5-diphenylpyrazole-3-carboxamide derivatives

US7462632B2 · kind B2 · utility

0Cited by

1References

11Claims

0Family size

Assignee

Sanofi-Aventis · FR

Inventors

Philippe Vayron · Paris, FR
Marc Daumas · Morsang-sur-Orge, FR
Raphael Sole · Digne-les-Bains, FR
Alain Dlubala · Paris, FR

Key dates

Filing date	Nov 14, 2006
Grant date	Dec 9, 2008
Priority date	—
Expiry date	Aug 2, 2027

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/34
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A process for the preparation of for the preparation of N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxamide and of its salts, wherein 1,5-dibromopentane is reacted with a compound of formula (IIIa)in the presence of Na2CO3 in acetonitrile heated at reflux.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.