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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 721573Generated: October 30, 2026

Triethylamine → HCID 21890453, compound

https://huagongshe.com/reaction/721573

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantN-(2-Aminoethyl)piperidineHCID 33944—
ReactantTriphosgeneHCID 94429—
Reactant4-(6,7-Dimethoxyquinazolin-4-yloxy)anilineHCID 11616363—
SolventWaterHCID 962—
SolventChloroformHCID 6212—
ProductHCID 21890453HCID 2189045355.3%

Reaction Steps

4-[(6,7-Dimethoxy-4-quinazolinyl)oxy]aniline (100 mg) was dissolved in chloroform (10 ml) and triethylamine (1 ml) to prepare a solution. A solution of triphosgene (151 mg) in chloroform was then added to the solution, and the mixture was stirred at room temperature for 10 min. Next, 2-piperidino-1-ethanamine (65 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 (84 mg, yield 55%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07135466B2
Source datasetuspto-grants-2006_11
ORD IDord-e0677d7f463949fe8908df4a5088f259
Source noteuspto-grants-2006_11