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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1899993Generated: October 30, 2026

Pyridine → HCID 23371739, compound

https://huagongshe.com/reaction/1899993

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 numberUS05574042
Source datasetuspto-grants-1996_11
ORD IDord-0a4ed51d679d4b94b3ef91c0ea8d6f8e
Source noteuspto-grants-1996_11