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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1771616Generated: November 2, 2026

Hydrochloric Acid → HCID 71516448, compound

https://huagongshe.com/reaction/1771616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 89443894HCID 89443894—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 71516448HCID 7151644894%

Reaction Steps

To a stirred solution of ethyl 2-[2,4-difluoro-3-[[2-fluoro-3-(3-fluorophenyl)-5-hydroxy-phenyl]methylamino]phenoxy]acetate (120 mg, 0.27 mmol, 1.0 eq) in THF (6 mL) at room temperature was added NaOH (1M aqueous solution, 3 mL, 3.0 mmol, 11.1 eq). The reaction was stirred at room temperature for 2 h. The solvent was then removed in vacuo and the solid obtained taken up in water and the aqueous layer acidified to pH 3-6 by addition of 1M HCl. The aqueous layer was extracted with EtOAc and the combined organic extracts were washed with water and brine, dried (Na2SO4) and evaporated in vacuo to give the title compound (I(f)) as a gummy solid (105 mg, 94%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09249085B2
Source datasetuspto-grants-2016_02
ORD IDord-68fe23a2e02d485c978d30e7426faa7e
Source noteuspto-grants-2016_02