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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1918810Generated: November 2, 2026

1,2-Dimethoxyethane → HCID 67016178, compound

https://huagongshe.com/reaction/1918810

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,2-DimethoxyethaneHCID 8071—
ReactantSodium CarbonateHCID 10340—
Reactant2-(2-(Acetoxymethyl)-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-oneHCID 58043877—
Reactant3-(5-acetyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-5-bromo-1-methylpyridin-2(1H)-oneHCID 58044056—
CatalystHCID 178418397HCID 178418397—
SolventMethanolHCID 887—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
SolventEthyl AcetateHCID 8857—
ProductHCID 67016178HCID 6701617836.9%

Reaction Conditions

Temperature130 °C

Reaction Steps

A microwave tube equipped with a magnetic stirrer was charged with 3-(5-acetyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-5-bromo-1-methylpyridin-2(1H)-one 108d (120 mg, 0.3 mmol), 2-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl acetate 114a (200 mg, 0.4 mmol), DME (4 mL) and 1M aqueous sodium carbonate (1 mL). After bubbling nitrogen for 15 min, Pd(PPh3)4 (19 mg, 0.02 mmol) was added. The mixture was heated in a microwave to 130° C. for 15 min. After this time, ethyl acetate (5 mL) and water (5 mL) were added. The separated aqueous layer was extracted with EtOAc (2×5 mL). The combined organics were washed with brine (10 mL), dried over sodium sulfate, filtered and concentrated under reduced pressure. The resulting residue was purified by column chromatography eluting with a gradient of CH2Cl2-60:35:5 CH2Cl2:Et2O:MeOH to afford a 33% yield (69 mg) of 2-(5-(5-acetyl-4,5,6,7-tetrahydropyrazolo[1,5-a]pyrazin-2-ylamino)-1-methyl-6-oxo-1,6-dihydropyridin-3-yl)-6-(1-oxo-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-2(1H)-yl)benzyl acetate 108e.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08618107B2
Source datasetuspto-grants-2013_12
ORD IDord-24f3229d811f4659a9318bc2a87b93fc
Source noteuspto-grants-2013_12