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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 240037Generated: October 26, 2026

Diisopropylethylamine → 6-Iodo-2-oxo-2H-chromene-3-carboxylic acid (3-imidazo[1,2-a]pyridin-2-yl-phenyl)-amide

https://huagongshe.com/reaction/240037

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant3-(Imidazo(1,2-a)pyridin-2-yl)anilineHCID 697021—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
Reactant6-Iodo-3-carboxy-coumarinHCID 18996405—
SolventDimethylformamideHCID 6228—
Product6-Iodo-2-oxo-2H-chromene-3-carboxylic acid (3-imidazo[1,2-a]pyridin-2-yl-phenyl)-amideHCID 4419751934%

Reaction Steps

DIEA (30.3 μL, 0.17 mmol) was added to 6-iodo-3-carboxy-coumarin (50.0 mg, 0.16 mmol) and HATU (66.2 g, 0.17 mmol) in 1 mL of DMF with constant stirring at room temperature until a clear solution resulted. Subsequently, 3-Imidazo[1,2-a]pyridin-2-yl-phenylamine (33.1 mg, 0.16 mmol) was added and allowed to react overnight when a solid precipitated out of solution. The resulting precipitate was filtered, dried under suction, and finally dried overnight in vacuo to give 27.4 mg of product in 34% yield: LCMS (ESI) m/z 508 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642788B2
Source datasetuspto-grants-2014_02
ORD IDord-373a6229db334fa5aba5c5df85143271
Source noteuspto-grants-2014_02