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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 279676Generated: October 30, 2026

Isopropanol → 4-(4-Bromo-2-fluoroanilino)-7-(2-(1,2,4-triazol-1-yl)ethoxy)-6-methoxyquinazoline hydrochloride

https://huagongshe.com/reaction/279676

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropanolHCID 3776—
Reactant4-Bromo-2-fluoroanilineHCID 123050—
Reactant4-Chloro-6-methoxy-7-(2-(1,2,4-triazol-1-yl)ethoxy)quinazolineHCID 22624896—
SolventHydrochloric AcidHCID 313—
Product4-(4-Bromo-2-fluoroanilino)-7-(2-(1,2,4-triazol-1-yl)ethoxy)-6-methoxyquinazoline hydrochlorideHCID 2262505715.8%

Reaction Conditions

Temperature80 °C

Reaction Steps

A suspension of 4-chloro-7-(2-(1,2,4-triazol-1-yl)ethoxy)-6-methoxyquinazoline (214 mg, 0.7 mmol), 4-bromo-2-fluoroaniline (160 mg, 0.84 mmol) in isopropanolic hydrogen chloride (1 ml of a 5M solution) and isopropanol (5 ml) was heated at 80 ° C. for 1 hour. The mixture was allowed to cool, the precipitate was collected by filtration, washed with isopropanol and then ether and dried under vacuum at 70° C. to give 4-(4-bromo-2-fluoroanilino)-7-(2-(1,2,4-triazol-1-yl)ethoxy)-6-methoxyquinazoline hydrochloride (55 mg, 15%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06362336B1
Source datasetuspto-grants-2002_03
ORD IDord-27326f9f3285462ca785de84a52afeed
Source noteuspto-grants-2002_03