Patent · US Expired

Selective phenylation of 5-hydroxy-.beta.-carboline derivatives

US5329009A · kind A · utility

0Cited by

2References

10Claims

0Family size

Assignee

SCHERING CORPORATION · US

Inventors

Gregor Haffer · Berlin, DE
Helmut Borner · Berlin, DE
Klaus Nickisch · Berlin, DE
Julius Deutsch · Chicago, US

Key dates

Filing date	Mar 19, 1992
Grant date	Jul 12, 1994
Priority date	—
Expiry date	Mar 19, 2012

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61P25/18
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Disclosed is chemoselective phenylation of 5-hydroxy-.beta.-carbolines in the presence of weak bases while adding water.

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