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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1921796Generated: October 26, 2026

Diisopropylethylamine → (5-Bromo-imidazo[1,2-a]pyrazin-8-yl)-[3-fluoro-4-(4-methyl-piperazin-1-yl)-phenyl]-amine

https://huagongshe.com/reaction/1921796

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant3-Fluoro-4-(4-methylpiperazin-1-yl)anilineHCID 2783055—
Reactant5,8-Dibromoimidazo[1,2-a]pyrazineHCID 53485949—
SolventIsopropanolHCID 3776—
Product(5-Bromo-imidazo[1,2-a]pyrazin-8-yl)-[3-fluoro-4-(4-methyl-piperazin-1-yl)-phenyl]-amineHCID 590230465%

Reaction Steps

Following the general procedure for amine displacement using 5,8-dibromoimidazo[1,2-a]pyrazine (0.50 g, 1.81 mmol), 3-fluoro-4-(4-methyl-piperazin-1-yl)-phenylamine (0.45 g, 2.17 mmol) and DIPEA (0.47 mL, 2.72 mmol) in iPrOH (5 mL). The crude material is purified by silica gel column chromatography eluting with 90:10 DCM:MeOH to give the title compound (35 mg, 5%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173656B2
Source datasetuspto-grants-2012_05
ORD IDord-d6a0cb2a2c1247a7888d18d625289a5f
Source noteuspto-grants-2012_05