Process for the preparation of donepezil hydrochloride

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

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C546S205000

Reexamination Certificate

active

07994328

ABSTRACT:
The present invention relates to an improved process for the preparation of 1-benzyl-4-[(5,6-dimethoxy-1-indanon)-2-yl]methylpiperidine hydrochloride of Formula I.

REFERENCES:
patent: 4895841 (1990-01-01), Sugimoto et al.
patent: 2007/0117846 (2007-05-01), Imai et al.
patent: 2009/0253746 (2009-10-01), Soldevilla Madrid
patent: 2616117 (2007-02-01), None
patent: 3992806 (2007-10-01), None
patent: WO 2007/013395 (2007-02-01), None
patent: WO 2007/108011 (2007-09-01), None
patent: WO 2008/010235 (2008-01-01), None
patent: WO 2008/126995 (2008-10-01), None
patent: WO 2009/084030 (2009-07-01), None
Seddon “pseudopolymorph . . . ” Crystal growth & design v.496) p. 1087 (2004) (two pages from internet).
Braga et al. “Making crystals . . . ” Roy. Sco. Chem. Chem Commun p. 3635-3645 (2005).
Nagarimadugu et al. “Process for . . . ” CA 147:277458 (2007).
Endo et al. “intermediate for donepeizil . . . ” CA13173566 (1997).

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