Patent · US Expired

Method for the production of imidazo-(1,2-C)(2,3)-benzodiazepines and intermediates in the production thereof

US6784292B2 · kind B2 · utility

1Cited by

2References

8Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Eric Winter · Pittsburgh, US
Matthias Schneider · Dossenheim, DE
Ulf Tilstam · Berlin, DE

Key dates

Filing date	Aug 21, 2003
Grant date	Aug 31, 2004
Priority date	—
Expiry date	Aug 29, 2023

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D491/14
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The invention relates to a method for the preparation of compound of formula (1). The invention further relates to the previously unknown compounds of formulas (5 and 6) as intermediates in the production of benzodiazepines of formula (1).

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