Patent · US Active

Process for the preparation of brinzolamide

US8344136B2 · kind B2 · utility

0Cited by

3References

12Claims

0Family size

Assignee

PHF S.A. · CH

Inventors

Alessandro Falchi · Sassari, IT
Ottorino De Lucchi · Montecchio Maggiore, IT
Andrea Castellin · Rubano, IT

Key dates

Filing date	Jun 15, 2009
Grant date	Jan 1, 2013
Priority date	—
Expiry date	Sep 27, 2029

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D513/04
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to a process for the preparation of Brinzolamide, or 2H-thieno[3,2-e]-1,2-thiazin-6-sulfonamide, 4-(ethyl amino)-3,4-dihydro-2-(3-methoxypropyl)-, 1,1-dioxide, (4R)-via intermediates 2,3-dihydro-4H-thieno[3,2-e]-1,2-thiazin-4-ones, 1,1-dioxide. Further objects of the present invention are the intermediates mentioned above and other intermediates of the synthesis.

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