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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1059019Generated: October 26, 2026

Hydrochloric Acid → 2-[3-{2-[4-(4Fluorobenzoyl)-1-piperidinyl]ethyl}-2,4-dioxo-3,4-dihydro-1(2H)-quinazolinyl]-N,N-dimethylacetamide hydrochloride

https://huagongshe.com/reaction/1059019

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantKetanserinHCID 3822—
ReactantSodium hydrideHCID 24758—
Reactant2-chloro-N,N-dimethylacetamideHCID 75886—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product2-[3-{2-[4-(4Fluorobenzoyl)-1-piperidinyl]ethyl}-2,4-dioxo-3,4-dihydro-1(2H)-quinazolinyl]-N,N-dimethylacetamide hydrochlorideHCID 22322408—

Reaction Steps

3-{2-[4-(4-Fluorobenzoyl)-1-piperidinyl]ethyl}-2,4(1H,3H)-quinazolinedione was dissolved in DMF (5 ml) and NaH (60% dispersion in mineral oil) added. After 0.5 hours, 2-chloro-N,N-dimethylacetamide was added and the solution stirred at room temperature for 16 hours. Water and ethyl actetate were added, the organic phase separated, dried and concentrated to an oil. Purification by chromatography (dichloromethane:methanol 95:5) gave an oil which was treated with 1.0 M ethereal hydrogen chloride solution to give the titled product as a solid(0.015 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06518286B1
Source datasetuspto-grants-2003_02
ORD IDord-886038107c344552a94facccec33c4ac
Source noteuspto-grants-2003_02