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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2086879Generated: October 30, 2026

Phthalic Anhydride → HCID 22724277, compound

https://huagongshe.com/reaction/2086879

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhthalic AnhydrideHCID 6811—
ReactantHCID 22724025HCID 22724025—
SolventWaterHCID 962—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 22724277HCID 2272427780.6%

Reaction Steps

A solution of 4-[3-(3-aminophenyl)phenyl]-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (100 mg) and phthalic anhydride (48 mg) in dioxane (3 ml) was stirred overnight at room temperature. The reaction mixture was diluted with water, and precipitated crystals were collected to give 4-[3-[3-(2-carboxybenzoylamino)phenyl]phenyl]-2-(3-pyridylmethyl)-3-oxo-3,4-dihydropyrido[2,3-b]pyrazine (110 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06727245B2
Source datasetuspto-grants-2004_04
ORD IDord-0945712b0df54adba1a5b27c372ec52f
Source noteuspto-grants-2004_04