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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1782547Generated: October 30, 2026

Water → Agomelatine

https://huagongshe.com/reaction/1782547

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantAcetic AnhydrideHCID 7918—
ReactantSodium AcetateHCID 517045—
Reactant2-(7-Methoxynaphthalen-1-yl)ethan-1-amine hydrochlorideHCID 16050055—
SolventEthanolHCID 702—
ProductAgomelatineHCID 8214892.5%

Reaction Steps

173 kg of the compound obtained in Step C and 66 kg of sodium acetate in ethanol are introduced into a 1600 liter reactor. The mixture is stirred and then 79 kg of acetic anhydride are added; the reaction mixture is heated at reflux and 600 l of water are added. The reaction mixture is allowed to return to ambient temperature and the precipitate obtained is filtered off and washed with a 35/65 ethanol/water mixture to give the title product in a yield of 92.5% and with a chemical purity exceeding 99%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07498466B2
Source datasetuspto-grants-2009_03
ORD IDord-622244ec24d0411ab05fdf9ec7365129
Source noteuspto-grants-2009_03