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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 71100Generated: October 30, 2026

Methyl iodide → 8-(3,4-Difluorophenyl)-8-(methoxymethyl)-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/71100

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl iodideHCID 6328—
ReactantSodium hydrideHCID 24758—
ReactantAmmonium ChlorideHCID 25517—
Reactant{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]pyridin-8-yl}methanolHCID 66604082—
SolventDimethylformamideHCID 6228—
Product8-(3,4-Difluorophenyl)-8-(methoxymethyl)-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 66604083—

Reaction Steps

Under an argon atmosphere, 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]pyridin-8-yl}methanol (260 mg) in DMF (2.9 mL) was added sodium hydride (60%, 27.6 mg) at 0° C., and the mixture was stirred for 30 min. Methyl iodide (0.0716 mL) was added to the reaction mixture, and the mixture was stirred at room temperature for 1 hr. Saturated aqueous ammonium chloride solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was dried over anhydrous magnesium sulfate, and the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (ethyl acetate/hexane) to give the title compound (69.1 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822699B2
Source datasetuspto-grants-2014_09
ORD IDord-4b7e93b6ac1f41b1a5f181d7768454a7
Source noteuspto-grants-2014_09