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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2416019Generated: October 31, 2026

Triethylamine → HCID 22637124, compound

https://huagongshe.com/reaction/2416019

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant5-Amino-3-methylisoxazoleHCID 84590—
ReactantTriphosgeneHCID 94429—
Reactant4-(6,7-Dimethoxyquinazolin-4-yloxy)anilineHCID 11616363—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 22637124HCID 2263712434.5%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline (40 mg) was dissolved in chloroform (1.2 ml) and triethylamine (0.1 ml) to prepare a solution. A solution of triphosgene (20 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 5 min. Next, 5-amino-3-methylisoxazole (15 mg) was added thereto, and the mixture was further stirred at room temperature overnight. Water was added to the reaction solution, and the mixture was subjected to separatory extraction with chloroform. The organic layer was concentrated, and the residue was then purified by chromatography (chloroform:acetone=2:1) to give the title compound (9.8 mg, yield 17.3%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06821987B2
Source datasetuspto-grants-2004_11
ORD IDord-11828add2d134b89975692495daa87a9
Source noteuspto-grants-2004_11