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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1921758Generated: November 3, 2026

(5-Bromoimidazo[1,2-a]pyrazin-8-yl)-(4-(4-methylpiperazin-1-yl)phenyl)amine → 2-Fluoro-4-{8-[4-(4-methylpiperazin-1-yl)phenylamino]imidazo[1,2-a]pyrazin-5-yl}benzamide

https://huagongshe.com/reaction/1921758

Reaction equation

Participants

RoleNameHCIDCharge
Reactant(5-Bromoimidazo[1,2-a]pyrazin-8-yl)-(4-(4-methylpiperazin-1-yl)phenyl)amineHCID 59022979—
Reactant2-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamideHCID 59023064—
CatalystHCID 178418397HCID 178418397—
SolventSodium CarbonateHCID 10340—
Solvent1,4-DioxaneHCID 31275—
Product2-Fluoro-4-{8-[4-(4-methylpiperazin-1-yl)phenylamino]imidazo[1,2-a]pyrazin-5-yl}benzamideHCID 59023042—

Reaction Steps

In the same way as described for Compound 127, step 4, using 2-fluoro-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzamide (82 mg, 0.31 mmol), (5-bromoimidazo[1,2-a]pyrazin-8-yl)-(4-(4-methylpiperazin-1-yl)phenyl)amine (60 mg, 0.155 mmol) and Pd(PPh3)4 (45 mg, 0.038 mmol) in dioxane (2.2 mL) and 1.5M Na2CO3 (0.83 mL). The residue is chromatographed on silica gel, eluting with DCM followed by 96:4 DCM:NH3 (7M in MeOH), and the fractions containing the desired product are combined and evaporated. The residue is triturated with Et2O to afford the title compound as a solid. HPLC (254 nm): Rt 1.94 min (93.5%); m/z (APCI) 446 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173656B2
Source datasetuspto-grants-2012_05
ORD IDord-44baed002ebf4837b21f6392a775f417
Source noteuspto-grants-2012_05