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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80092Generated: October 29, 2026

Ethyl Acetate → 7-[3-(4-Methyl-pyridin-3-yl)-2-oxo-imidazolidin-1-yl]-3,4-dihydro-1H-quinolin-2-one

https://huagongshe.com/reaction/80092

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
Reactant7-[3-(4-Methyl-pyridin-3-yl)-2-oxo-imidazolidin-1-yl]-2-oxo-3,4-dihydro-2H-quinoline-1-carboxylic acid tert-butyl esterHCID 68785307—
SolventHexaneHCID 8058—
Product7-[3-(4-Methyl-pyridin-3-yl)-2-oxo-imidazolidin-1-yl]-3,4-dihydro-1H-quinolin-2-oneHCID 6878689643.8%

Reaction Steps

Dioxane hydrochloride (3 mL) was added to 7-[3-(4-methyl-pyridin-3-yl)-2-oxo-imidazolidin-1-yl]-2-oxo-3,4-dihydro-2H-quinoline-1-carboxylic acid tert-butyl ester (0.145 g, 0.00034 mol) at 0° C. The resulting reaction mixture was stirred at room temperature for 2 hours. The reaction was monitored by TLC (40% ethylacetate in hexane). Purification by preparative HPLC, followed by column chromatography on silica gel (5% MeOH in CHCl3) afforded 48 mg of the product (35.47% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUSRE045173E1
Source datasetuspto-grants-2014_09
ORD IDord-32e4b2db6aa7414fa4b055e90e801e01
Source noteuspto-grants-2014_09