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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2182572Generated: October 31, 2026

HCID 178494219, compound → Quinazoline hydrochloride

https://huagongshe.com/reaction/2182572

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 178494219HCID 178494219—
Solvent1-MethylpiperazineHCID 53167—
ProductQuinazoline hydrochlorideHCID 21186983101.3%

Reaction Conditions

Temperature100 °C

Reaction Steps

A mixture of 7-(2-(2-bromoethoxy)ethoxy)4-(chloro-2-fluoroanilino)4 methoxyquinazoline (150 mg, 0.32 mmol) in 1-methylpiperazine (2 ml) was heated at 100° C. for 1 hour. The mixture was allowed to cool and was partitioned between ethyl acetate and water. The organic layer was separated and washed with water and then brine, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by column chromatography on silica eluting with methylene chloride/methanol (85/15 followed by 80/20). The purified solid product was dissolved in methylene chloride/methanol (III) and 2.9M ethereal hydrogen chloride was added. The volatiles were removed by evaporation and the solid was triturated with ether, collected by filtration, washed with ether and dried under vacuum to give 4-(4-chloro-2-fluoroanilino)+methoxy-722-[4-methylpiperazin-1-yl]ethoxy)ethoxy)quinazoline hydrochloride (54 mg, 28%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06897210B2
Source datasetuspto-grants-2005_05
ORD IDord-1b26064afb2c4344b6cf5fc199fbbe0c
Source noteuspto-grants-2005_05