Patent · US Expired

Resorufin derivatives

US5304645A · kind A · utility

46Cited by

6References

8Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Christian Klein · Iffeldorf, DE
Hans-Georg Batz · Tutzing, DE
Rupert Herrmann · Weilheim, DE

Key dates

Filing date	Mar 28, 1991
Grant date	Apr 19, 1994
Priority date	—
Expiry date	Mar 28, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S530/802
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention provides resorufin derivatives of the general formulae: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5, which can be the same or different, are hydrogen, halogen, carboxyl, carboxamido, lower alkoxycarbonyl, cyano or nitro groups or lower alkyl or lower alkoxy radicals, which can be substituted by carboxyl, carboxamido, lower alkoxycarbonyl, cyano or nitro groups, and wherein R.sup.4 and R.sup.5 can together also represent an anellated aromatic residue, Z is a bridge member, A is the residue of a ligand and n is a whole number of from 1 to 200. The present invention also provides processes for the preparation of these resorufin derivatives, as well as intermediates for the preparation thereof.

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