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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1183985Generated: November 1, 2026

Lithium hydroxide, monohydrate → HCID 67248550, compound

https://huagongshe.com/reaction/1183985

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium hydroxide, monohydrateHCID 168937—
Reactantethyl 2-methyl-4-(3-methyl-2-oxo-4-phenylpyridin-1(2H)-yl)-2-(methylsulfonyl)butanoateHCID 67248376—
SolventHydrochloric AcidHCID 313—
SolventMethanol tetrahydrofuran waterHCID 21892291—
ProductHCID 67248550HCID 67248550—

Reaction Steps

To a solution of ethyl 2-methyl-4-(3-methyl-2-oxo-4-phenylpyridin-1(2H)-yl)-2-(methylsulfonyl)butanoate (118.3 mg, 0.313 mmol) in tetrahydrofuran/methanol/water (4:1:1, 3.13 mL) was added lithium hydroxide monohydrate (26.3 mg, 0.626 mmol). The mixture was stirred at ambient temperature overnight. The mixture was diluted with aqueous HCl (1 N in water) and extracted with ethyl acetate 2×. The combined organic extracts were dried over magnesium sulfate, filtered and concentrated to dryness to afford 2-methyl-4-(3-methyl-2-oxo-4-phenylpyridin-1(2H)-yl)-2-(methylsulfonyl)butanoic acid as a solid. 109.4 mg.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08664401B2
Source datasetuspto-grants-2014_03
ORD IDord-95a17e1a44b2493c86170840e556cab9
Source noteuspto-grants-2014_03