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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1514896Generated: November 4, 2026

Water → HCID 87217684, compound

https://huagongshe.com/reaction/1514896

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
Reactant7-Amino-4-methylcoumarinHCID 92249—
ReactantHCID 87217357HCID 87217357—
SolventEthyl AcetateHCID 8857—
ProductHCID 87217684HCID 87217684—

Reaction Steps

To a stirred suspension of 2-(2,6-dimethylphenyl)-3H-benzoimidazole-5-carbonyl chloride HCl salt (from Example 1-247) (160 mg) and 7-amino-4-methyl-chromen-2-one (87 mg) was added DIPEA (0.27 mL). The resulting solution was stirred at room temperature for 18 h. The mixture was partioned between water and EtOAc and the aqueous layer was extracted with EtOAc. The combined organic layers were dried, filtered and concentrated. The residue was purified by an amino column using hexanes/ethyl acetate (1:4) and gave 2-(2,6-dimethylphenyl)-3H-benzoimidazole-5-carboxylic acid (4-methyl-2-oxo-2H-chromen-7-yl)-amide as a white solid; MS (ESI)m/z 424 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08222248B2
Source datasetuspto-grants-2012_07
ORD IDord-dbe1e44f25044225a90a6cbc9be68241
Source noteuspto-grants-2012_07