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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2392886Generated: October 29, 2026

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

https://huagongshe.com/reaction/2392886

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 numberUS05801180
Source datasetuspto-grants-1998_09
ORD IDord-d9b0da71e5f64109b5ed628ca7f347bc
Source noteuspto-grants-1998_09