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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 71122Generated: October 29, 2026

Acetic Anhydride → HCID 66604128, compound

https://huagongshe.com/reaction/71122

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AnhydrideHCID 7918—
ReactantTetrahydrofuranHCID 8028—
ReactantTriethylamineHCID 8471—
Reactant{8-(3,4-Difluorobenzyl)-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 66603794—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventEthyl AcetateHCID 8857—
ProductHCID 66604128HCID 66604128—

Reaction Steps

A catalytic amount of 4-dimethylaminopyridine was added to a mixture of {8-(3,4-difluorobenzyl)-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 (80.0 mg), acetic anhydride (19.4 μL), triethylamine (28.6 μL) and THF (1 mL) under ice-cooling. The reaction mixture was stirred at room temperature for 1 hr, and diluted with ethyl acetate, and the mixture was washed with water and saturated brine, and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the residue was purified by silica gel column chromatography (methanol/ethyl acetate) to give the title compound (72.5 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822699B2
Source datasetuspto-grants-2014_09
ORD IDord-6541e3ab76bb4257be7ca03c5b61e973
Source noteuspto-grants-2014_09