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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 869677Generated: October 30, 2026

Water → HCID 178472229, compound

https://huagongshe.com/reaction/869677

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPyridineHCID 1049—
Reactant2-Ethylpropanedioyl dichlorideHCID 10920924—
ReactantHCID 178432134HCID 178432134—
SolventEthanolHCID 702—
SolventDimethylacetamideHCID 31374—
ProductHCID 178472229HCID 178472229—

Reaction Steps

To a solution of 3-(3-methylquinoxalin-2-yl)-1H-pyrazol-5-amine (5.00 g, 22.2 mmol) in N,N-dimethylacetamide (111 mL) was added ethyl malonyl chloride (5.68 mL, 44.4 mmol) and pyridine (37.2 mL, 45.9 mmol) at 0° C. After being stirred for 3 h, the reaction mixture was diluted with ethanol (118 mL), and stirred at room temperature for 18 h. After adding water (260 mL), the resulting precipitate was collected and washed with water to give ethyl 3-{[3-(3-methylquinoxalin-2-yl)-1H-pyrazol-5-yl]amino}-3-oxopropanoate. MS (APCI): m/z 340 (M+H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08969376B2
Source datasetuspto-grants-2015_03
ORD IDord-70778f44a2cc421b819d6571a39f4b51
Source noteuspto-grants-2015_03