Process for the preparation of levocetirizine and...

Details Process for the preparation of levocetirizine and... Process for the preparation of levocetirizine and...

2008-03-12

2011-11-01

Kosar, Andrew D (Department: 1622)

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C544S389000, C544S390000, C544S391000

Reexamination Certificate

active

08049011

ABSTRACT:
The present invention describes a novel process for the preparation of levocetirizine and pharmaceutically acceptable acid addition salts thereof using diglycolic acid or derivatives thereof and new intermediates used in that process.

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Ip.com (Feb. 16, 2007) IPCOM000146553D, “Polymorphism of levocetirizine”.
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International Search Report from PCT/EP2008/052970, dated Sep. 18, 2008.

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