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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1161527Generated: October 29, 2026

Triethylamine → 6-(3-{[2-Fluoro-3-(2-fluoroethoxy)-5-methoxyphenyl]-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl)pyridine-2-carboxylic acid methyl ester

https://huagongshe.com/reaction/1161527

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant6-Hydrazinopyridine-2-carboxylic acid methyl ester hydrochlorideHCID 67097302—
Reactant{2-[2-Fluoro-3-(2-fluoroethoxy)-5-methoxyphenyl]-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene}carbamic acid methyl esterHCID 72312758—
SolventDimethylformamideHCID 6228—
Product6-(3-{[2-Fluoro-3-(2-fluoroethoxy)-5-methoxyphenyl]-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl)pyridine-2-carboxylic acid methyl esterHCID 136173631—

Reaction Conditions

Temperature85 °C

Reaction Steps

After adding 149 mg of 6-hydrazinopyridine-2-carboxylic acid methyl ester hydrochloride and 92 μl of triethylamine to a solution of 255 mg of {2-[2-fluoro-3-(2-fluoroethoxy)-5-methoxyphenyl]-2-[4-(5-methyl-[1,2,4]oxadiazol-3-yl)phenylimino]-1-methylsulfanylethylidene}carbamic acid methyl ester (Example (3e)) in 5 ml of DMF, the mixture was stirred at 85° C. for 24 hours under a nitrogen atmosphere.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07816522B2
Source datasetuspto-grants-2010_10
ORD IDord-3f17a2313ac641eb8842869c4bbb9b7c
Source noteuspto-grants-2010_10