Patent · US Expired

Process for the production of indole derivatives

US5401854A · kind A · utility

1Cited by

3References

13Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Gregor Haffer · Berlin, DE
Helmut Borner · Berlin, DE
Wolfgang Kubler · Berlin, DE
Klaus Nickisch · Berlin, DE

Key dates

Filing date	Mar 8, 1993
Grant date	Mar 28, 1995
Priority date	—
Expiry date	Mar 8, 2013

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D209/08
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

A process for the production of indole derivatives, which is characterized in that in the presence of phosphoric acid a substitution with an imine is performed, and intermediate products of this process and the production of these intermediate products are described.

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