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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1774657Generated: October 30, 2026

Hydrochloric Acid → 5-bromo-1-methyl-3-(6-(2-(methylamino)ethoxy)pyridin-2-ylamino)pyridin-2(1H)-one hydrochloride

https://huagongshe.com/reaction/1774657

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 2-(6-(5-bromo-1-methyl-2-oxo-1,2-dihydropyridin-3-ylamino)pyridin-2-yloxy)ethyl(methyl)carbamateHCID 118116879—
Product5-bromo-1-methyl-3-(6-(2-(methylamino)ethoxy)pyridin-2-ylamino)pyridin-2(1H)-one hydrochlorideHCID 11811648385.1%

Reaction Steps

A mixture of 112c (900 mg, 1.99 mmol) in HCl (5 mL, 4 M in 1,4-dioxane, 20 mmol) was stirred at rt for 2 h. The reaction mixture was concentrated to give 5-bromo-1-methyl-3-(6-(2-(methylamino)ethoxy)pyridin-2-ylamino)pyridin-2(1H)-one hydrochloride 112d (660 mg, 85%) as yellow solid. This material was used for next step directly. ESI-LCMS: m/z=354.9 (free base)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260415B2
Source datasetuspto-grants-2016_02
ORD IDord-3c2b9193eb804b8eacb1498edc8f0e12
Source noteuspto-grants-2016_02