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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2416022Generated: November 1, 2026

Triethylamine → HCID 22637127, compound

https://huagongshe.com/reaction/2416022

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant3-Amino-5-methylisoxazoleHCID 66172—
ReactantTriphosgeneHCID 94429—
Reactant3-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]anilineHCID 21890564—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 22637127HCID 2263712730.2%

Reaction Steps

3-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-aniline (42 mg) was dissolved in chloroform (2.0 ml) and triethylamine (0.13 ml) to prepare a solution. A solution of triphosgene (19 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 5 min. Next, 3-amino-5-methylisoxazole (14 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 was evaporated to dryness. Diethyl ether was added to the resultant solid, and the solution was filtered. The filtrate was concentrated, and methyl alcohol was added to the residue. The resultant crystal was collected by filtration to give the title compound (8.8 mg, yield 15%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06821987B2
Source datasetuspto-grants-2004_11
ORD IDord-3d2aac7cf40240ea86624e54ceea41d5
Source noteuspto-grants-2004_11