Process for the preparation of donepezil

Details Process for the preparation of donepezil Process for the preparation of donepezil

C - Chemistry, Metallurgy

07

D

C07D 211/34 (2006.01) C07D 211/32 (2006.01)

Patent

CA 2429563

The invention provides a process for the preparation of a compound of the formula 6 comprising the hydrolysis and decarboxylation of a compound of the formula 5 according to the reaction: (see formulas 5 and 6) wherein R and R2 are independently a C1-C4 alkyl group or an aralkyl group.

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