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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1008389Generated: November 2, 2026

Methanol → HCID 22667174, compound

https://huagongshe.com/reaction/1008389

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthylamine hydrochlorideHCID 11198—
ReactantTriphosgeneHCID 94429—
Reactant4-(6,7-Dimethoxyquinazolin-4-yloxy)anilineHCID 11616363—
SolventChloroformHCID 6212—
SolventTriethylamineHCID 8471—
ProductHCID 22667174HCID 2266717416.1%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline (50 mg) was dissolved in chloroform (3 ml) and triethylamine (0.2 ml), and a solution of triphosgene (50 mg) in chloroform was then added to the solution. The mixture was stirred at room temperature for 30 min. Next, ethylamine hydrochloride (69 mg) was added to the reaction solution, and the mixture was further stirred at room temperature overnight. Methanol was added to the reaction solution, and the solution was purified by HPLC by development with chloroform/methanol to give 10 mg (yield 16%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06797823B1
Source datasetuspto-grants-2004_09
ORD IDord-b4881dd44a5443c58b5305659e9d52f9
Source noteuspto-grants-2004_09