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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2086877Generated: October 30, 2026

Ethyl Acetate → HCID 22724373, compound

https://huagongshe.com/reaction/2086877

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 22724047HCID 22724047—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 22724373HCID 22724373—

Reaction Steps

To a mixture of 4-[3-(4-acetoxybenzoylamino)phenyl]-2-benzyl-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (147 ma) in methanol (3 ml) and 1,4-dioxane (3 ml) was added a solution of potassium carbonate (83 mg) in water (0.5 ml). The mixture was stirred at room temperature for 1.5 hours, then poured into a mixture of ethyl acetate and water. The organic phase was separated, washed with brine, dried over magnesium sulfate and concentrated. The residue was crystallized from ethanol to give 2-benzyl-4-[3-(4-hydroxybenzoylamino)phenyl]-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (53 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06727245B2
Source datasetuspto-grants-2004_04
ORD IDord-e2a86b1624a9438ca691b01847bc95d5
Source noteuspto-grants-2004_04