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Process for the Preparation of Donepezl Hydrochloride Cross-reference to Related Applications
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 2017 |
| Abstract | (52) U.S. Cl. . 514/319; 546/185:546/206 (57) ABSTRACT The present invention provides a process for preparing done pezil or a salt thereof, the process comprising reducing a 1-benzyl-4-(5,6-dimethoxy-1-indanon-2-yl)methylenelpy ridonium halide of formula II, wherein X is bromide or chlo ride, in the presence of an ionic compound, a solvent, a catalyst and a source of hydrogen, to form donepezil and optionally converting the donepezil to the salt thereof. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://patentimages.storage.googleapis.com/c6/d8/b7/ea04e8dd558e87/US20110077271A1.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |