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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1670301Generated: October 31, 2026

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

https://huagongshe.com/reaction/1670301

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 numberUS07989477B2
Source datasetuspto-grants-2011_08
ORD IDord-e5ecf470d9584b09b020e63669641102
Source noteuspto-grants-2011_08