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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1161570Generated: October 28, 2026

Methanol → 4-({[1-(3-Aminopyridin-2-yl)-5-oxo-4,5-dihydro-1H-[1,2,4]triazol-3-yl]-[2-fluoro-5-methoxy-3-(2-methoxyethoxy)phenyl]methyl}amino)benzamidine acetate

https://huagongshe.com/reaction/1161570

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantWaterHCID 962—
Reactant5-{[2-Fluoro-5-methoxy-3-(2-methoxyethoxy)phenyl]-[4-(5-trifluoromethyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-2-(3-nitropyridin-2-yl)-2,4-dihydro-[1,2,4]triazol-3-oneHCID 136389282—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
Product4-({[1-(3-Aminopyridin-2-yl)-5-oxo-4,5-dihydro-1H-[1,2,4]triazol-3-yl]-[2-fluoro-5-methoxy-3-(2-methoxyethoxy)phenyl]methyl}amino)benzamidine acetateHCID 136389283—

Reaction Conditions

Temperature65 °C

Reaction Steps

Iron powder (55 mg) was added to 4.5 ml of a methanol:water:acetic acid=1:1:1 mixed solvent solution containing 38 mg of 5-{[2-fluoro-5-methoxy-3-(2-methoxyethoxy)phenyl]-[4-(5-trifluoromethyl-[1,2,4]oxadiazol-3-yl)phenylamino]methyl}-2-(3-nitropyridin-2-yl)-2,4-dihydro-[1,2,4]triazol-3-one. The mixture was stirred at 65° C. for 24 hours under a nitrogen atmosphere. The reaction mixture was filtered and then purified by reverse-phase high performance liquid chromatography (acetonitrile-water, 0.1% acetic acid) to give the title compound (25 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07816522B2
Source datasetuspto-grants-2010_10
ORD IDord-58daea2d35444d7ba34990eceeaed239
Source noteuspto-grants-2010_10