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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2062237Generated: October 31, 2026

Triethylamine → 2-(4-((S)-4-benzyl-2-isopropylpiperazin-1-yl)-7-methylquinazolin-2-yl)phenol

https://huagongshe.com/reaction/2062237

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant(3S)-1-Benzyl-3-(propan-2-yl)piperazineHCID 17750438—
Reactant2-(4-Chloro-7-methylquinazolin-2-yl)-phenolHCID 136105032—
SolventDimethylformamideHCID 6228—
Product2-(4-((S)-4-benzyl-2-isopropylpiperazin-1-yl)-7-methylquinazolin-2-yl)phenolHCID 13612157964%

Reaction Conditions

Temperature85 °C

Reaction Steps

To a solution of 2-(4-chloro-7-methylquinazolin-2-yl)phenol (200 mg, 0.74 mmol) in 10 mL DMF was added (S)-1-benzyl-3-isopropylpiperazine followed by the addition of triethylamine (206 μL). The reaction was heated at 85° C. for two hours. The reaction was quenched with water after cooling it to room temperature. The aqueous layer was extracted twice with CH2Cl2, and the combined extracts were dried over MgSO4, filtered, and concentrated. The reaction was purified via silica gel chromatography using 1:1 hexanes:CH2Cl2 solvent system to yield 2-(4-((S)-4-benzyl-2-isopropylpiperazin-1-yl)-7-methylquinazolin-2-yl)phenol (230 mg, 64%). LC/MS: m/z 453.5 (M+H)+ at 2.61 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08283354B2
Source datasetuspto-grants-2012_10
ORD IDord-82ccdcfaa74d4c1dae89bdfb0153459d
Source noteuspto-grants-2012_10