Patent · US Expired

Process for the production of antiulceratives

US6686474B2 · kind B2 · utility

0Cited by

1References

41Claims

0Family size

Assignee

Gruenenthal GmbH · DE

Inventors

Hartmut Loebermann · Aachen, DE
Karl-Heinz Caster · Eschweiler, DE

Key dates

Filing date	Apr 29, 2002
Grant date	Feb 3, 2004
Priority date	—
Expiry date	Jul 16, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P35/00
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

A method for the production of an antiulcerative via reacting reacting a compound of formula II: with m-chloroperoxybenzoic acid in a solvent of acetone or acetone/water mixture to form a reaction mixture. The reaction mixture has a pH of 7.0 or above, and crystals of the antiulcerative compound of formula I are formed which may be optionally separated.

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