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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079297Generated: October 27, 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/2079297

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 numberUS07928107B2
Source datasetuspto-grants-2011_04
ORD IDord-9c42ba043bf344a8a9afb10cf133852d
Source noteuspto-grants-2011_04