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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1938549Generated: October 29, 2026

Isopropanol → 2-[N-(3-Ethoxycarbonylpropyl)-N-methylamino]-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazoline

https://huagongshe.com/reaction/1938549

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIsopropanolHCID 3776—
ReactantTriethylamineHCID 8471—
ReactantEthyl 4-(methylamino)butanoate hydrochlorideHCID 14177893—
Reactant2-Chloro-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazolineHCID 21183984—
SolventDimethylformamideHCID 6228—
Product2-[N-(3-Ethoxycarbonylpropyl)-N-methylamino]-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazolineHCID 2206934377.6%

Reaction Steps

858 mg of ethyl N-methyl-4-aminobutyrate hydrochloride, 238 mg of triethylamine, 4 ml of 2-propanol and 2 ml of N,N-dimethylformamide were added to 400 mg of 2-chloro-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazoline. The obtained mixture was refluxed for 1 hour, cooled to room temperature and filtered. The filtrate was distilled under a reduced pressure to remove the solvent and the residue was recrystallized (from ethanol/water) to give 410 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05693652
Source datasetuspto-grants-1997_12
ORD IDord-79f23b7fb99d4a8eac82ab1834ba6f01
Source noteuspto-grants-1997_12