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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1008428Generated: October 30, 2026

Methanol → HCID 22667185, compound

https://huagongshe.com/reaction/1008428

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantDipropylamineHCID 8902—
ReactantTriphosgeneHCID 94429—
Reactant2-Chloro-4-((6,7-dimethoxyquinazolin-4-yl)oxy)anilineHCID 21889899—
SolventChloroformHCID 6212—
SolventTriethylamineHCID 8471—
ProductHCID 22667185HCID 2266718535%

Reaction Steps

2-Chloro-4-[(6,7-dimethoxy-4-quinazolinyl)oxy]-aniline (100 mg) was dissolved in chloroform (3 ml) and triethylamine (0.3 ml), and a solution of triphosgene (90 mg) in chloroform was then added to the solution. The mixture was stirred at room temperature for 15 min. Next, dipropylamine (62 μl ) was added to the reaction solution, and the mixture was stirred at room temperature for additional 30 min. Methanol was added to the reaction solution, and the mixture was purified by HPLC by development with chloroform/methanol. The solvent was removed by distillation, and the resultant crystal was washed with hexane to give 48 mg (yield 35%) of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06797823B1
Source datasetuspto-grants-2004_09
ORD IDord-f85b354333b04712bcbb1219897a48d6
Source noteuspto-grants-2004_09