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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 987539Generated: October 26, 2026

Diisopropylethylamine → Piperazine, 4-benzoyl-1-(1,2-dioxo-2-(1H-pyrrolo(2,3-b)pyridin-3-yl)ethyl)-2-methyl-, (2R)-

https://huagongshe.com/reaction/987539

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiisopropylethylamineHCID 81531—
Reactant3-(Diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-oneHCID 4293995—
Reactant(R)-1-Benzoyl-3-methylpiperazineHCID 7578227—
ReactantAlfa-oxo-1H-pyrrolo-[2,3B]pyridine-3-acetic acid monopotassium saltHCID 23721194—
SolventDimethylformamideHCID 6228—
ProductPiperazine, 4-benzoyl-1-(1,2-dioxo-2-(1H-pyrrolo(2,3-b)pyridin-3-yl)ethyl)-2-methyl-, (2R)-HCID 5495793—

Reaction Steps

Potassium 7-azaindole 3-glyoxylate 3a (25.4 g, 0.111 mol), (R)-3-methyl-N-benzoylpiperazine 4a (22.7 g, 0.111 mol), 3-(diethoxyphosphoryloxy)-1,2,3-benzotriazin-4(3H)-one (DEPBT) (33.3 g, 0.111 mol) and Hunig's Base (28.6 g, 0.222 mol) were combined in 500 ml of DMF. The mixture was stirred at room temperature for 8 hours.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06632819B1
Source datasetuspto-grants-2003_10
ORD IDord-b851d8dd80544e44a023f938ddc10fee
Source noteuspto-grants-2003_10