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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1737584Generated: October 30, 2026

Potassium Carbonate → HCID 22625014, compound

https://huagongshe.com/reaction/1737584

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 numberUS05962458
Source datasetuspto-grants-1999_10
ORD IDord-3a43cbfc97ba4d51b4f61ec57d1b6601
Source noteuspto-grants-1999_10