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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 388146Generated: October 30, 2026

1,1'-Carbonyldiimidazole → HCID 136373231, compound

https://huagongshe.com/reaction/388146

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantHCID 86626417HCID 86626417—
ReactantHCID 86626418HCID 86626418—
SolventTetrahydrofuranHCID 8028—
ProductHCID 136373231HCID 13637323192%

Reaction Steps

6-Bromo-1-((1-methylpiperidin-2-yl)methyl)-1H-imidazo[4,5-b]pyrazin-2(3H)-one. A solution of 6-bromo-N2-((1-methylpiperidin-2-yl)methyl)pyrazine-2,3-diamine (0.48 g, 1.599 mmol) and 1,1′-carbonyldiimidazole (0.324 g, 1.999 mmol) in anhydrous tetrahydrofuran (15 mL) was heated overnight at 115° C. The volatiles were removed under reduced pressure, and the crude product was purified by Biotage column chromatography (0-15% methanol in dichloromethane) to provide the title compound (0.48 g, 1.472 mmol, 92% yield). MS (ESI) m/z 327.2 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08372976B2
Source datasetuspto-grants-2013_02
ORD IDord-0f6929594d50402da6892ec6a503feeb
Source noteuspto-grants-2013_02