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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1161522Generated: October 28, 2026

Triethylamine → 3-{3-[(4-Cyanophenylamino)-(5-fluoro-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl)methyl]-5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl}thiophene-2-carboxylic acid methyl ester

https://huagongshe.com/reaction/1161522

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantMethyl 3-Hydrazinothiophene-2-CarboxylateHCID 2777595—
Reactant[2-(4-Cyanophenylimino)-2-(5-fluoro-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl)-1-methylsulfanylethylidene]carbamic acid methyl esterHCID 72312729—
SolventDimethylformamideHCID 6228—
Product3-{3-[(4-Cyanophenylamino)-(5-fluoro-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl)methyl]-5-oxo-4,5-dihydro-[1,2,4]triazol-1-yl}thiophene-2-carboxylic acid methyl esterHCID 135982145—

Reaction Conditions

Temperature85 °C

Reaction Steps

To a solution of 2 g of [2-(4-cyanophenylimino)-2-(5-fluoro-8-methoxy-2,3-dihydrobenzo[1,4]dioxin-6-yl)-1-methylsulfanylethylidene]carbamic acid methyl ester in 24 ml of DMF there were added 720 mg of 3-hydrazinothiophene-2-carboxylic acid methyl ester and 1.2 ml of triethylamine, and the mixture was stirred overnight at 85° C. under a nitrogen atmosphere.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07816522B2
Source datasetuspto-grants-2010_10
ORD IDord-2add5429012d490880aaba2b35747f4c
Source noteuspto-grants-2010_10