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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1529217Generated: November 3, 2026

Sodium Hydroxide → HCID 58235232, compound

https://huagongshe.com/reaction/1529217

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant4-[3-(6-Amino-pyridin-3-ylethynyl)-2-ethyl-pyridin-4-yl]-2-fluoro-benzoic acid methyl esterHCID 58235283—
SolventTetrahydrofuranHCID 8028—
ProductHCID 58235232HCID 58235232—

Reaction Conditions

Temperature95 °C

Reaction Steps

The title compound is synthesized according to general procedure GP4 starting from 2.36 g (6.3 mmol) 4-[3-(6-Amino-pyridin-3-ylethynyl)-2-ethyl-pyridin-4-yl]-2-fluoro-benzoic acid methyl ester (A-37) using 9.4 mL (9.4 mmoL) 1N NaOH in 40 mL THF. The reaction mixture is stirred for 2 h at 95° C. The solvent is removed under reduced pressure, the crude product is taken up with water and the pH is adjusted to 5 (with 1N HCl). The precipitate is collected by filtration. Yield after drying: 2.2 g (97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09090564B2
Source datasetuspto-grants-2015_07
ORD IDord-77b16910e93e43ab941c0c146ecf36b6
Source noteuspto-grants-2015_07