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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2227943Generated: October 26, 2026

Methanol → 4-(4-Bromo-2-fluoroanilino)6-methoxy-7-(3-methylsulphonylpropoxy)quinazoline

https://huagongshe.com/reaction/2227943

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
Reactant4-(4-Bromo-2-fluoroanilino)-6-methoxy-7-(3-methylthiopropoxy)quinazolineHCID 22478281—
ReactantPotassium hydroxy sulfiteHCID 23707502—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
Product4-(4-Bromo-2-fluoroanilino)6-methoxy-7-(3-methylsulphonylpropoxy)quinazolineHCID 1875344773%

Reaction Steps

A solution of OXONE, (trade mark of E.I du Pont de Nemours & Co., Inc), (800 mg) in water (4.5 ml) was added to a solution of 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(3-methylthiopropoxy)quinazoline (300 mg, 0.66 mmol), (prepared as described in Example 31), in methanol (15 ml) and the mixture was stirred for 4 hours at ambient temperature. The mixture was diluted with methylene chloride, was washed with aqueous sodium hydrogen carbonate solution, dried (MgSO4) and the solvent was removed by evaporation. The residue was triturated with ethyl acetaie/hexane, collected by filtration and dried to give 4-(4-bromo-2-fluoroanilino)-6-methoxy-7-(3-methylsulphonylpropoxy)quinazoline (235 mg, 73%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06414148B1
Source datasetuspto-grants-2002_07
ORD IDord-7c7251be4d95449e86ba7dfb42bbf6e4
Source noteuspto-grants-2002_07