Patent · US Active

Process for the preparation of 4-(imidazol-1-yl)benzenesulfonamide derivatives

US8476456B2 · kind B2 · utility

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2References

15Claims

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Assignee

Palau Pharma, S.A. · ES

Inventors

Carmen Almansa Rosales · Barcelona, ES
Concepción González González · Mondoñedo, ES

Key dates

Filing date	Apr 1, 2008
Grant date	Jul 2, 2013
Priority date	—
Expiry date	Oct 22, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D233/68
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Process for the preparation of 4-(imidazol-1-yl)benzenesulfonamide derivatives of formula I, wherein R1 represents optionally substituted aryl or heteroaryl, which comprises treating a compound of formula II, wherein R1 has the same meaning defined in the formula I and But represents tert-butyl, with an acid. The 4-(imidazol-1-yl)benzenesulfonamide derivatives of formula I are useful as anti-inflammatory agents.

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