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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1838560Generated: November 1, 2026

Methanol → HCID 22478229, compound

https://huagongshe.com/reaction/1838560

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantHCID 22478299HCID 22478299—
ReactantPotassium hydroxy sulfiteHCID 23707502—
SolventWaterHCID 962—
SolventDichloromethaneHCID 6344—
ProductHCID 22478229HCID 2247822980%

Reaction Steps

A solution of OXONE, (trade mark of E. I. du Pont de Nemours & Co.,Inc), (652 mg) in water (1.6 ml) was added to a solution of 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-methylthioethoxy)quinazoline (200 mg, 0.5 mmol), (prepared as described in Example 29), in methanol (10 ml) and the mixture was stirred for 18 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 acetate/hexane, collected by filtration and dried to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-methylsulphonylethoxy)quinazoline (172 mg, 80%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06673803B2
Source datasetuspto-grants-2004_01
ORD IDord-9556acdd7d5c4a25a9d71220ea87aa92
Source noteuspto-grants-2004_01