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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2062212Generated: October 25, 2026

Triethylamine → (R)-1-(4-(6-bromo-2-(2-hydroxyphenyl)quinazolin-4-yl)piperazin-1-yl)-2-hydroxy-4-methylpentan-1-one

https://huagongshe.com/reaction/2062212

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant(R)-2-hydroxy-4-methyl-1-(piperazin-1-yl)pentan-1-oneHCID 59216548—
Reactant2-(6-Bromo-4-chloroquinazolin-2-yl)phenolHCID 136121500—
SolventDichloromethaneHCID 6344—
Product(R)-1-(4-(6-bromo-2-(2-hydroxyphenyl)quinazolin-4-yl)piperazin-1-yl)-2-hydroxy-4-methylpentan-1-oneHCID 13612157736.4%

Reaction Steps

A solution of 6-bromo-4-chloro-2-(2-hydroxyphenyl)quinazoline (75 mg, 0.22 mmol), (R)-2-hydroxy-4-methyl-1-piperazin-1-yl-pentan-1-one (60 mg, 0.3 mmol), triethylamine (42 μL, 0.3 mmol), and CH2Cl2 (2 mL) was stirred at room temperature overnight. After diluting with CH2Cl2, the reaction mixture was washed with H2O, dried over Na2SO4, and concentrated. The crude material was purified by silica gel chromatography using 0-10% MeOH/CH2Cl2 to give (R)-1-{4-[6-bromo-2-(2 hydroxyphenyl)-quinazolin-4-yl]-piperazin-1-yl}-2-hydroxy-4-methyl-pentan-1-one (40 mg, 36%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08283354B2
Source datasetuspto-grants-2012_10
ORD IDord-6c496fcf9ae14defbbc7790231bc9a03
Source noteuspto-grants-2012_10