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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634653Generated: October 30, 2026

Ammonia → HCID 5329013, compound

https://huagongshe.com/reaction/634653

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHCID 21260358HCID 21260358—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 5329013HCID 532901346.3%

Reaction Steps

Concentrated aqueous ammonia (5 ml) was added to a solution of 4-(5-acetoxy-4-chloro-2-fluoroanilino)-6-methoxy-7-(2-methoxyethoxy)quinazoline (180 mg, 0.4 mmol) in methanol (50 ml). The mixture was stirred at ambient temperature for 3 hours, and then diluted with water. Most of the methanol was removed by evaporation and the resulting precipitate collected by filtration, washed with water and dried to give 4-(4-chloro-2-fluoro-5-hydroxyanilino)-6-methoxy-7-(2-methoxyethoxy)quinazoline (73 mg, 45%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06184225B2
Source datasetuspto-grants-2001_02
ORD IDord-a9be5bf9694d43858bf2068677993cdc
Source noteuspto-grants-2001_02