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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 591823Generated: October 31, 2026

Water → HCID 136348017, compound

https://huagongshe.com/reaction/591823

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant2-MethoxyethanolHCID 8019—
ReactantSodium hydrideHCID 24758—
Reactant2-(2,6-dimethylpyridin-4-yl)-5,7-difluoro-3H-quinazolin-4-oneHCID 136348006—
SolventAcetic AcidHCID 176—
SolventDimethylformamideHCID 6228—
ProductHCID 136348017HCID 136348017—

Reaction Steps

To a solution of 2-methoxyethanol (2.65 g, 34.8 mmol) in DMF (38 mL) was added sodium hydride (60% suspension in mineral oil, 0.70 g, 17.4 mmol) in portions and the reaction mixture was stirred at room temperature for 0.5 hours. To this mixture was added 2-(2,6-dimethylpyridin-4-yl)-5,7-difluoro-3H-quinazolin-4-one (0.50 g, 1.74 mmol) and the reaction mixture was stirred at room temperature for 16 hours. Water (1.5 mL) was added, the mixture was neutralized to pH approximately 6-7 with acetic acid, concentrated, dissolved in ethyl acetate (200 mL), washed with water and brine, dried over anhydrous sodium sulfate, and concentrated in vacuo. The residue was washed with hexanes to give 2-(2,6-dimethylpyridin-4-yl)-7-fluoro-5-(2-methoxyethoxy)-3H-quinazolin-4-one) as a pale solid. Yield: 0.52 g (87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09238640B2
Source datasetuspto-grants-2016_01
ORD IDord-fcbc2b868eac43c287569e6d971ebf54
Source noteuspto-grants-2016_01