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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2237270Generated: October 29, 2026

Hydrochloric Acid → 4-(4-Amino-3-fluorophenoxy)pyridin-2-amine

https://huagongshe.com/reaction/2237270

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantN-(4-(2-aminopyridin-4-yloxy)-2-fluorophenyl)pivalamideHCID 59852964—
SolventMethanolHCID 887—
Product4-(4-Amino-3-fluorophenoxy)pyridin-2-amineHCID 714708854%

Reaction Steps

A solution of N-(4-(2-aminopyridin-4-yloxy)-2-fluorophenyl)pivalamide (70 mg, 0.23 mmol) in 3 mL of MeOH was added 2 mL of 6 N HCl. The mixture was then heated at reflux for 48 h. After cooling down, the solvent was removed under reduced pressure and the residue was purified by solid extraction (Waters Oasis® MCX extraction cartridge) to give 4-(4-amino-3-fluorophenoxy)pyridin-2-amine (27 mg, 54% yield). MS(ESI+): m/z 220.21 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07714138B2
Source datasetuspto-grants-2010_05
ORD IDord-e9d01d423b4f40499a79f1170f1a51a8
Source noteuspto-grants-2010_05