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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 658391Generated: October 30, 2026

Sodium Hydroxide → 5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-4-methyl-2,4-dihydro-[1,2,4]triazol-3-one

https://huagongshe.com/reaction/658391

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant2-(3-(2-fluoro-4-iodophenylamino)isonicotinoyl)-N-methylhydrazinecarboxamideHCID 59026814—
SolventWaterHCID 962—
Product5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-4-methyl-2,4-dihydro-[1,2,4]triazol-3-oneHCID 590268296.4%

Reaction Conditions

Temperature120 °C

Reaction Steps

To a suspension of 2-{3-[(2-fluoro-4-iodophenyl)amino]isonicotinoyl}-N-methylhydrazinecarboxamide (165 mg; 0.38 mmol) in water (3 mL) was added 1N NaOH (3 mL). The mixture became homogeneous. The reaction mixture was heated at 120° C. for 3 days. The progress of the reaction was monitored by LCMS. Concentration of the solvent and repeated purifications gave 10 mg of 5-[3-(2-Fluoro-4-iodo-phenylamino)-pyridin-4-yl]-4-methyl-2,4-dihydro-[1,2,4]triazol-3-one

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08076486B2
Source datasetuspto-grants-2011_12
ORD IDord-7ce9895a836743e8a860a3527ad0d2af
Source noteuspto-grants-2011_12