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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 279621Generated: October 29, 2026

Potassium Carbonate → HCID 22625014, compound

https://huagongshe.com/reaction/279621

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 22625098HCID 22625098—
Reactant4-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazolineHCID 135513720—
SolventWaterHCID 962—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 22625014HCID 2262501456.5%

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (350 mg, 1.0 mmol), (prepared as described for the starting material in Example 24), 4-(3-chloropropoxy)pyridine hydrochloride (206 mg, 1.0 mmol) and potassium carbonate (303 mg, 2.2 mmol) in NMP (20 ml) was heated at 90° C. for 2 hours. The mixture was allowed to cool, diluted with water and extracted with ethyl acetate. The combined extracts were washed with water, dried (MgSO4) and the solvent removed by evaporation. The residue was purified by column chromatography eluting with methylene chloride/methanol mixtures (100/0 increasing to 95/5) to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(3-(4-pyridyloxy)propoxy)quinazoline (257 mg, 56%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06362336B1
Source datasetuspto-grants-2002_03
ORD IDord-b1f23aaba1514c3a8c30ebfa33116faa
Source noteuspto-grants-2002_03