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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2061805Generated: November 2, 2026

Lithium Hydroxide → HCID 59416116, compound

https://huagongshe.com/reaction/2061805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantLithium HydroxideHCID 3939—
ReactantHCID 59415925HCID 59415925—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 59416116HCID 5941611626.2%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of ethyl 6-(6-(3-ethylureido)-4-(4-(trifluoromethyl)thiazol-2-yl)pyridin-3-yl)-1-(2-hydroxy-1-(tetrahydro-2H-pyran-4-yl)ethyl)-4-oxo-1,4-dihydroquinoline-3-carboxylate (Example 103, 107 mg, 0.16 mmol, 1 equiv.) in tetrahydrofuran (1 mL) and methanol (1 mL) was added 2 M lithium hydroxide (0.162 mL, 0.32 mmol). The reaction mixture was heated to 100° C. for 15 min in a microwave. The reaction mixture was cooled to room temperature and diluted with water. The reaction mixture was filtered, and the filtrate was dried. Purification via reverse phase HPLC (C18, acetonitrile/water 0-95% gradient) and concentrated under reduced pressure to provide 6-(6-(3-ethylureido)-4-(4-(trifluoromethyl)thiazol--yl)pyridin-3-yl)-1-(2-hydroxy-1-(tetrahydro-2H-pyran-4-yl)ethyl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid as a light yellow solid (26.5 mg, 26%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08283361B2
Source datasetuspto-grants-2012_10
ORD IDord-b15d9b66b0d1452fbf84a777ac7d10de
Source noteuspto-grants-2012_10