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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2231047Generated: November 1, 2026

Dichloromethane → HCID 22724200, compound

https://huagongshe.com/reaction/2231047

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantTriethylamineHCID 8471—
ReactantEthyl AcetateHCID 8857—
ReactantSodium BicarbonateHCID 516892—
ReactantHCID 22724309HCID 22724309—
ProductHCID 22724200HCID 22724200—

Reaction Steps

To a mixture of 4-(3-aminophenyl)-2-benzyl-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (150 mg) and triethylamine (0.16 ml) in dichloromethane (3 ml) was added 3-[(E)-3-pyridyl]acryloyl chloridehydrochloride (140 mg). The mixture was stirred at room temperature for 30 minutes, then poured into a mixture of ethyl acetate and aqueous sodium bicarbonate. The organic phase was separated, washed with aqueous sodium bicarbonate and brine, dried over magnesium sulfate and concentrated. The residue was crystallized from methanol to give 2-benzyl-4-[3-[(E)-3-(3-pyridyl)acryloylamino]phenyl]-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (138 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06426345B1
Source datasetuspto-grants-2002_07
ORD IDord-9f7418e2359d4d37b5027fdbbc60562b
Source noteuspto-grants-2002_07