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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 23357Generated: October 25, 2026

Cyclohexylthiourea → 7-[2-(Cyclohexylamino)-1,3-thiazol-5-yl]quinazolin-4(3h)-one

https://huagongshe.com/reaction/23357

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyclohexylthioureaHCID 1471603—
ReactantBromo-(4-oxo-3,4-dihydro-quinazolin-7-yl)acetaldehydeHCID 135531132—
SolventDimethylformamideHCID 6228—
Product7-[2-(Cyclohexylamino)-1,3-thiazol-5-yl]quinazolin-4(3h)-oneHCID 135496165—

Reaction Steps

A solution of bromo-(4-oxo-3,4-dihydro-quinazolin-7-yl)acetaldehyde and N-cyclohexylthiourea in dimethylformamide is heated at 70° C. until completion of the reaction (5-12 hours). The mixture is quenched with 10% dimethylamine in ethanol and the solvent is removed under reduced pressured. The crude is purified by chromatography on silica gel to isolate the desired compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06852720B2
Source datasetuspto-grants-2005_02
ORD IDord-25238562fd52496693cf85f9c426924f
Source noteuspto-grants-2005_02