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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 240039Generated: October 26, 2026

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

https://huagongshe.com/reaction/240039

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant3-(Imidazo(1,2-a)pyridin-2-yl)anilineHCID 697021—
Reactant6-methoxy-2-oxo-2H-chromene-3-carboxylic acidHCID 711717—
ReactantMethanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 9886157—
SolventDimethylformamideHCID 6228—
Product6-Methoxy-2-oxo-2H-chromene-3-carboxylic acid (3-imidazo[1,2-a]pyridin-2-yl-phenyl)-amideHCID 4419738283%

Reaction Steps

DIEA (43.5 μL, 0.25 mmol) was added to 6-methoxy-3-carboxy-coumarin (50.0 mg, 0.23 mmol) and HATU (95.0 mg, 0.25 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 (475. mg, 0.23 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 78.5 mg of product in 83% yield: LCMS (ESI) m/z 412 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08642788B2
Source datasetuspto-grants-2014_02
ORD IDord-910c7c2cc0814008822277171030d6d4
Source noteuspto-grants-2014_02