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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2416033Generated: November 1, 2026

Triethylamine → HCID 22637141, compound

https://huagongshe.com/reaction/2416033

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTriphosgeneHCID 94429—
Reactant2-Amino-5-methylthiazoleHCID 351770—
Reactant2-Chloro-4-((6,7-dimethoxyquinazolin-4-yl)oxy)anilineHCID 21889899—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 22637141HCID 2263714112.7%

Reaction Steps

2-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-aniline (100 mg) was dissolved in chloroform (5 ml) and triethylamine (0.5 ml) to prepare a solution. A solution of triphosgene (100 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 15 min. Next, 2-amino-5-methylthiazole (58 mg) was added thereto, and the mixture was further stirred at room temperature overnight. Distilled water was added to the reaction solution, and the mixture was subjected to separatory extraction with chloroform. The organic layer was washed with saturated brine and was dried over sodium sulfate. The organic layer was concentrated under the reduced pressure, and the residue was purified by HPLC using chloroform/acetone for development to give 18 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06821987B2
Source datasetuspto-grants-2004_11
ORD IDord-d5e8a328a9d94677868a0f8a671ce2d6
Source noteuspto-grants-2004_11