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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 721538Generated: October 27, 2026

Triethylamine → N-(1-Benzyl-4-piperidyl)-N'-{4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-2-methoxyphenyl}urea

https://huagongshe.com/reaction/721538

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantTriphosgeneHCID 94429—
Reactant1-Benzyl-4-piperidylamineHCID 415852—
Reactant4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]-2-methoxyanilineHCID 21889991—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductN-(1-Benzyl-4-piperidyl)-N'-{4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-2-methoxyphenyl}ureaHCID 2188990971.1%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]-2-methoxyaniline (100 mg) was dissolved in chloroform (10 ml) and triethylamine (1 ml) to prepare a solution. A solution of triphosgene (139 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 10 min. Next, 1-benzyl-4-piperidineamine (89 mg) was added thereto, and the mixture was further stirred at room temperature for one hr. Water was added to stop the reaction, and the reaction solution was then extracted with chloroform, followed by concentration. The residue was purified on a column using chloroform/methanol to give the title compound (118 mg, yield 71%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135466B2
Source datasetuspto-grants-2006_11
ORD IDord-b8fb1ee93c8f42a8bfa963bd2690ca95
Source noteuspto-grants-2006_11