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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1874423Generated: November 1, 2026

Ethanol → HCID 57749095, compound

https://huagongshe.com/reaction/1874423

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydroxylamine HClHCID 21645—
ReactantDiisopropylethylamineHCID 81531—
ReactantHCID 57749328HCID 57749328—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 57749095HCID 5774909570.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of ethyl ({[5-(3-{[(1,3-dimethyl-1H-pyrazol-5-yl) carbonyl]amino}-4-fluorophenoxy)pyridin-2-yl]amino}carbonothioyl)carbamate (1.15 g, 2.43 mmol), hydroxylammonium chloride (1.18 g, 17.0 mmol), N,N-diisopropylethylamine (2.12 mL, 12.2 mmol), ethanol (10 mL) and methanol (10 mL) was stirred at 80° C. for 8 hr. The reaction mixture was diluted with water and extracted with ethyl acetate (×3). The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and filtrated. The filtrate was concentrated under reduced pressure, and the residue was collected by filtration and washed with ethyl acetate-hexane to give the title compound (650 mg, 70%) as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08304557B2
Source datasetuspto-grants-2012_11
ORD IDord-dfb65ee2f2e34f1fbbdd1ebd31f3a32f
Source noteuspto-grants-2012_11