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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1921831Generated: October 27, 2026

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

https://huagongshe.com/reaction/1921831

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant4-[4-(Propan-2-yl)piperazin-1-yl]anilineHCID 9161545—
Reactant5,8-Dibromoimidazo[1,2-a]pyrazineHCID 53485949—
Product(5-Bromo-imidazo[1,2-a]pyrazin-8-yl)-[4-(4-isopropyl-piperazin-1-yl)-phenyl]-amineHCID 5902299543.1%

Reaction Steps

A solution of 5,8-dibromo-imidazo[1,2-a]pyrazine (0.134 g, 0.48 mmol), 4-(4-isopropyl-piperazin-1-yl)-phenylamine (0.118 g, 0.54 mmol) and diisopropylethylamine (0.093 mL, 0.54 mmol) is stirred at 90° C. for 18 hours. The reaction mixture is concentrated in vacuo and partitioned between DCM and sat. NaHCO3. The organic layer is washed with brine, dried over MgSO4, filtered and concentrated. The residue is purified by silica gel column chromatography eluting with 98:2 DCM:MeOH to afford the title compound (0.086 g, 43%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173656B2
Source datasetuspto-grants-2012_05
ORD IDord-667b0324d77a4dcbafeb20cab76fca5e
Source noteuspto-grants-2012_05