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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1900680Generated: October 31, 2026

Water → 2-(4-Hydroxypiperidino)-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazoline

https://huagongshe.com/reaction/1900680

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDimethylformamideHCID 6228—
ReactantPiperidin-4-olHCID 79341—
Reactant2-Chloro-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazolineHCID 21183984—
SolventEthyl AcetateHCID 8857—
Product2-(4-Hydroxypiperidino)-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazolineHCID 2118398535.9%

Reaction Steps

A mixture comprising 339 mg of 2-chloro-4-(3,4-methylenedioxybenzyl)amino-6-cyanoquinazoline, 500 mg of 4-hydroxypiperidine and 20 ml of N,N-dimethylformamide was heated under reflux for 5 hours and poured into 50 ml of water, followed by the addition of 50 ml of ethyl acetate. The obtained mixture was filtered to remove insolubles. The organic layer of the filtrate was dried over magnesium sulfate and concentrated under a reduced pressure to give a crystalline residue. This residue was washed with chloroform to give 145 mg of the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05576322
Source datasetuspto-grants-1996_11
ORD IDord-bb9c7a4276a34320a7d4db9437819820
Source noteuspto-grants-1996_11