Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1888069Generated: November 1, 2026

Donepezil → HCID 86648418, compound

https://huagongshe.com/reaction/1888069

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDonepezilHCID 3152—
ReactantBenzenesulfonic AcidHCID 7371—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 86648418HCID 86648418—

Reaction Steps

3.790 g of Donepezil is dissolved in 70 ml of ethyl acetate. A solution (35 ml) of benzenesulfonic acid (1.852 g) in absolute ethanol is added slowly and drop-wisely. The solid precipitated is filtered under suction to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08501779B2
Source datasetuspto-grants-2013_08
ORD IDord-2c71e474eaec43709de9b594612e4ce6
Source noteuspto-grants-2013_08