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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1828173Generated: November 1, 2026

Dimethylformamide → HCID 178424676, compound

https://huagongshe.com/reaction/1828173

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPyrazine-2-carboxamidine hydrochlorideHCID 470895—
ReactantHCID 22063817HCID 22063817—
SolventWaterHCID 962—
ProductHCID 178424676HCID 178424676—

Reaction Conditions

Temperature60 °C

Reaction Steps

A stirred mixture of 5-(bromo-m-tolyl-acetyl)-1-isopropyl-3-methyl-1,3-dihydro-benzoimidazol-2-one (prepared as described in example 142, 0.5 gm, 1.25 mmol), pyrazine-2-carboxamidine hydrochloride (0.395 gm, 2,49 mmol) cesium carbonate (1.22 gm, 3.74 mmol) and DMF (4.0 mL) was heated to 60° C. After 1 hour, the reaction was determined to be complete by LCMS. The reaction was cooled to room temperature and diluted with water (40 mL). After stirring for 1 hour, the crude suspension was filtered and the solids were purified by flash chromatography (diethyl ether, followed by ethyl acetate) to afford 40 mg of the title compound as a light tan solid. MS (M+1)=425.1

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07056918B2
Source datasetuspto-grants-2006_06
ORD IDord-5a3b2c52d1424f0286cfa922dcc74161
Source noteuspto-grants-2006_06