Processes for the preparation of intermediates of valsartan

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

Reexamination Certificate

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Reexamination Certificate

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07943794

ABSTRACT:
The present invention relates to processes for the preparation of intermediates of valsartan.

REFERENCES:
patent: 5399578 (1995-03-01), Bühlmayer et al.
patent: 6271375 (2001-08-01), Villa et al.
patent: 2006/0069268 (2006-03-01), Denni-Dischert et al.
patent: 2006/0100443 (2006-05-01), Parthasaradhi Reddy et al.
patent: 2006/0281801 (2006-12-01), Kumar et al.
patent: WO 2005/049587 (2005-06-01), None
patent: WO 2005/049588 (2005-06-01), None
Beutler, et al., “A High-Throughput Process for Valsartan”,Organic Process Research&Development, 11(5), 892-898 (2007).

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