Patent · US Active

Process for the separation of enantiomers of 3,6-dihydro-1,3,5-triazine derivatives

US8895732B2 · kind B2 · utility

0Cited by

1References

3Claims

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Assignee

Merck Patent GmbH · DE

Inventors

Matthias Helmreich · Heidelberg, DE
Claus-Peter Niesert · Seeheim-Jugenheim, DE
Michael Schulte · Bischofsheim, DE
Wolfgang Lindner · Parsippany, US
Michael Laemmerhofer · Tübingen, DE
Christian Hoffmann · Leonberg, DE

Key dates

Filing date	Feb 26, 2010
Grant date	Nov 25, 2014
Priority date	—
Expiry date	Dec 13, 2030

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D251/10
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

Method for the chromatographic separation of compounds of the formula (I), in which R1, R2, R3, R4, R5, R6 have the meanings indicated in Claim 1, and acid-addition salts thereof, characterized in that the separation is carried out on a chiral ion-exchanger material.

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