Patent · US Active

Method for the production of Praziquantel and precursors thereof

US9932337B2 · kind B2 · utility

0Cited by

0References

20Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

David Maillard · Coventry, GB
Andreas Waechtler · Darmstadt, DE
Jeremy Maurin · Lodève, FR
Ewgenij Wakaresko · Reichelsheim, DE
Christian Jasper · Seligenstadt, DE

Key dates

Filing date	Nov 19, 2015
Grant date	Apr 3, 2018
Priority date	—
Expiry date	Nov 19, 2035

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07B2200/07
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

The present invention relates to methods for the production of enantiopure or enantioenriched Praziquantel precursors and to methods for the production of enantiopure or enantioenriched Praziquantel comprising the methods for the production of the Praziquantel precursors. The present invention further relates to compounds or intermediates useful in such methods.

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