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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290176Generated: October 28, 2026

Pyridine → HCID 23371739, compound

https://huagongshe.com/reaction/1290176

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantN-methyl-2-pyrrolidoneHCID 13387—
ReactantPropionyl chlorideHCID 62324—
Reactant8-(3-Amino-2,6-dichlorobenzyloxy)-3-bromo-2-methylimidazo[1,2-a]pyridine dihydrochlorideHCID 18923317—
SolventWaterHCID 962—
ProductHCID 23371739HCID 23371739—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a suspension of 8-(3-amino-2,6-dichlorobenzyloxy)-3-bromo-2-methylimidazo[1,2-a]pyridine dihydrochloride (200 mg), pyridine (1 ml) and N-methylpyrrolidone (3 ml) was added propionyl chloride (78 mg) and the mixture was stirred at 60° C. for 1 hour. To the cooled mixture was added water, and the precipitate was collected by filtration and dissolved in chloroform. This organic solution was washed with water and brine respectively, dried with magnesium sulfate and concentrated in vacuo. The residue was collected by filtration and washed with ethyl acetate to give 3-bromo-8-(2,6-dichloro-3-propionylaminobenzyloxy)-2-methylimidazo [1,2-a]pyridine (158 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05750699
Source datasetuspto-grants-1998_05
ORD IDord-927638e0cea44e1b924c6307c20f32a2
Source noteuspto-grants-1998_05