Patent · US Expired

Phenolsulphonphthaleinyl-.beta.-D-galactosides and diagnostic agents containing them

US4668622A · kind A · utility

9Cited by

2References

8Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Manfred Kuhr
Rudolf Machat · Mannheim, DE
Wolfgang Weckerle · Grünstadt, DE
Hans-Georg Batz · Tutzing, DE
Rupert Herrmann · Weilheim, DE
Wolfgang Kleeman · Worms, DE
Herbert Buschek · Weilheim, DE

Key dates

Filing date	Dec 13, 1984
Grant date	May 26, 1987
Priority date	—
Expiry date	Dec 13, 2004

Classification

Technology area (CPC G)Physics
CPC primaryG01N2333/924
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention provides phenolsulphonphthaleinyl-.beta.-D-galactosides of the general formula: ##STR1## wherein R.sup.1 to R.sup.4, which can be the same or different, are hydrogen or halogen atoms or nitro or amino groups, R.sup.5 to R.sup.12, which can be the same or different, are hydrogen or halogen atoms or lower alkyl, hydroxyl, lower alkoxy, carboxyl or nitro groups and M.sup.+ is a proton, an alkali metal, alkaline earth metal or ammonium ion. The present invention also provides a process for preparing these galactosides and diagnostic agents containing them.

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