Patent · US Expired

Dicarboxylic acid esters of cardiac glycosides

US4133949A · kind A · utility

2Cited by

1References

4Claims

0Family size

Assignee

Boehringer Mannheim GmbH · DE

Inventors

Hans-Georg Batz · Tutzing, DE
Hans-Ralf Linke · Raisting, DE
Klaus Stellner · Bernried, DE
Gunter Weimann

Key dates

Filing date	Aug 16, 1976
Grant date	Jan 9, 1979
Priority date	—
Expiry date	Aug 16, 1996

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S436/823
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

New reactive asymmetrical dicarboxylic acid ester compounds of the formula ##STR1## wherein R.sub.1 is an alkyl radical containing up to 3 carbon atoms or is a digoxin or digitoxin residue, R.sub.2 and R.sub.3, which may be the same or different, are alkoxy radicals containing up to 3 carbon atoms or together represent an oxygen atom, X is a cyanomethoxy, succinimide-N-oxy, N-methyl-pyridiniumoxy, 2,4-dinitrophenoxy, 2,4,5-trichlorophenoxy, pentachlorophenoxy, phenylthio, p-nitrophenoxy, p-nitrophenylthio, piperidyl-N-oxy, phthalimido-N-oxy or benztriazol-N-oxy radical and n is 2, 3, 4 or 5. are useful for the preparation of reagents for the investigation of cardiac glycosides (Digitalis glycosides).

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