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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1398128Generated: November 1, 2026

Iodoethane → 8-(3,4-Difluorophenyl)-8-ethyl-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine

https://huagongshe.com/reaction/1398128

Reaction equation

Participants

RoleNameHCIDCharge
ReactantIodoethaneHCID 6340—
ReactantSodium hydrideHCID 24758—
Reactant8-(3,4-Difluorophenyl)-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridineHCID 66608853—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product8-(3,4-Difluorophenyl)-8-ethyl-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridineHCID 66604221—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a mixture of 8-(3,4-difluorophenyl)-3-[3-methoxy-4-(2-methyl-1,3-oxazol-5-yl)phenyl]-5,6,7,8-tetrahydro[1,2,4]triazolo[4,3-a]pyridine (200 mg) in DMF (4 mL) was added sodium hydride (60%, 28.4 mg) at room temperature, and the mixture was stirred at 60° C. for 30 min under a nitrogen atmosphere. Ethyl iodide (45.2 μL) was added to the reaction mixture at room temperature, and the mixture was stirred at room temperature for 30 min. The reaction mixture was diluted with water, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, and dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (methanol/ethyl acetate) to give the title compound (37.1 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08901309B2
Source datasetuspto-grants-2014_12
ORD IDord-8a6fe7fc9514466e9db51bf21268ab34
Source noteuspto-grants-2014_12