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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 275736Generated: November 2, 2026

Ethyl Acetate → HCID 12150417, compound

https://huagongshe.com/reaction/275736

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
ReactantHCID 12150416HCID 12150416—
ReactantHCID 178418361HCID 178418361—
CatalystHCID 178418390HCID 178418390—
SolventTetrahydrofuranHCID 8028—
ProductHCID 12150417HCID 1215041786.7%

Reaction Steps

388 mg of 4-[3-(4-benzyloxybenzoylamino)phenyl]-6,7-dimethoxy-2-methylaminoquinazoline obtained in Example 20 and 200 mg of 10% palladium-carbon powder (hydrate) were suspended in a mixed solvent of 10 ml ethyl acetate and 10 ml tetrahydrofuran. After the atmosphere was replaced with hydrogen, the mixture was stirred for 3 days at ordinary pressure at room temperature. The reaction solution was filtered, and the filtrate was evaporated. Then, the crude product was recrystallized from hexane-ethyl acetate to give 278 mg of the title compound as pale yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06352989B1
Source datasetuspto-grants-2002_03
ORD IDord-51a3dc2a8a3e4768b74707d4d99aeed9
Source noteuspto-grants-2002_03