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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1919098Generated: November 2, 2026

1,4-Dioxane hydrochloride → 3-(4-(Azetidin-3-yl)phenylamino)-5-bromo-1-methylpyrazin-2(1H)-one Hydrochloride

https://huagongshe.com/reaction/1919098

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
Reactanttert-Butyl 3-(4-(6-Bromo-4-methyl-3-oxo-3,4-dihydropyrazin-2-ylamino)phenyl)azetidine-1-carboxylateHCID 58044293—
SolventMethanolHCID 887—
Product3-(4-(Azetidin-3-yl)phenylamino)-5-bromo-1-methylpyrazin-2(1H)-one HydrochlorideHCID 8666126017%

Reaction Steps

A mixture of 298b (690 mg, 1.6 mmol) and HCl/1,4-dioxane (8M, 8 mL) in methanol (30 mL) was stirred at room temperature overnight. The mixture was evaporated in vacuo and the residue was purified on reverse phase Combi-flash to give 298c (100 mg, 17%). MS: [M+H]+ 335.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08618107B2
Source datasetuspto-grants-2013_12
ORD IDord-dd84b521ecd34ecda81fe15746dd0636
Source noteuspto-grants-2013_12