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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 84289Generated: October 29, 2026

Potassium Hydroxide → HCID 67250298, compound

https://huagongshe.com/reaction/84289

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium HydroxideHCID 14797—
ReactantEthyl (2R)-4-(3-fluoro-2-oxo-4-phenylpyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)butanoateHCID 67248709—
SolventMethanol tetrahydrofuran waterHCID 21892291—
ProductHCID 67250298HCID 6725029872.9%

Reaction Steps

Potassium hydroxide (120 mg, 2.14 mmol) was added to a solution of ethyl (2R)-4-(3-fluoro-2-oxo-4-phenylpyridin-1(2H)-yl)-2-methyl-2-(methylsulfonyl)butanoate (131 mg, 0.33 mmol) in THF:methanol:water (2:2:1, 10 mL) and the reaction was stirred at RT overnight. The reaction was concentrated, and the residue was dissolved in aqueous 1N sodium hydroxide (20 mL), washed with ethyl acetate (3×20 mL), acidified using concentrated HCl, and extracted with ethyl acetate (3×50 mL). The combined organics were dried (MgSO4), filtered, and concentrated to afford the title compound as a white solid (88.4 mg, 72.7%). LC-MS m/z 383.0 (M+1). 1H NMR (400 MHz, DMSO-d6) δ ppm 1.59 (s, 3 H) 2.13-2.30 (m, 1 H) 3.17 (s, 3 H) 3.93-4.23 (m, 2 H) 6.43 (t, J=6.93 Hz, 1 H) 7.44-7.56 (m, 3 H) 7.57-7.66 (m, 3 H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846933B2
Source datasetuspto-grants-2014_09
ORD IDord-eba4fc588487444a90fc5b292ed534ec
Source noteuspto-grants-2014_09