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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 587465Generated: October 29, 2026

Ethyl bromoacetate → HCID 58577597, compound

https://huagongshe.com/reaction/587465

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromoacetateHCID 7748—
ReactantSodium hydrideHCID 24758—
ReactantCalcium ChlorideHCID 5284359—
Reactant3-[4-(1H-benzimidazol-2-yloxy)phenyl]-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-oneHCID 58577411—
SolventMethanolHCID 887—
SolventDimethylformamideHCID 6228—
ProductHCID 58577597HCID 58577597—

Reaction Steps

Ethyl bromoacetate (0.240 mL) was added to a solution of 3-[4-(1H-benzimidazol-2-yloxy)phenyl]-1-ethyl-1,3-dihydro-2H-imidazo[4,5-b]pyridin-2-one (400 mg) and sodium hydride (86 mg) in DMF (2 mL) at room temperature. The mixture was stirred at room temperature under a dry atmosphere (CaCl2 tube) for 2 h. The reaction mixture was diluted with MeOH (5 mL), and concentrated under reduced pressure. The residue was purified by column chromatography (silica gel, eluted with 0%-50% EtOAc in hexane) to give ethyl {2-[4-(1-ethyl-2-oxo-1,2-dihydro-3H-imidazo[4,5-b]pyridin-3-yl)phenoxy]-1H-benzimidazol-1-yl}acetate (480 mg) as off-white crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09226921B2
Source datasetuspto-grants-2016_01
ORD IDord-468a7547eb44475cbdec88f39ba9587c
Source noteuspto-grants-2016_01