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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409726Generated: October 27, 2026

Sodium Bicarbonate → 8-(2,6-Difluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid [5-(2,2,4-trimethyl-piperazin-1-ylmethyl)-pyridin-2-yl]-amide

https://huagongshe.com/reaction/2409726

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
ReactantTrimethylaluminumHCID 16682925—
Reactant5-(2,2,4-Trimethyl-piperazin-1-ylmethyl)-pyridin-2-ylamineHCID 66914602—
Reactant8-(2,6-Difluoro-3,5-dimethoxyphenyl)quinoxaline-5-carboxylic acid ethyl esterHCID 86641145—
SolventDichloromethaneHCID 6344—
SolventDichloromethane methanolHCID 21226129—
Product8-(2,6-Difluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid [5-(2,2,4-trimethyl-piperazin-1-ylmethyl)-pyridin-2-yl]-amideHCID 59292957—

Reaction Conditions

Temperature80 °C

Reaction Steps

The title compound was prepared in analogy to the procedures described in Example 115 but using 8-(2,6-difluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid ethyl ester (Step 124.1), 5-(2,2,4-trimethyl-piperazin-1-ylmethyl)-pyridin-2-ylamine (Step 110.1), 1.5 equiv of trimethyl aluminum, stirring the reaction mixture for 6 h at 80° C. and pouring it onto a saturated aqueous solution of NaHCO3 and DCM. Title compound: ESI-MS: 563.1 [M+H]+; tR=3.55 min (System 1); TLC: Rf=0.08 (DCM/MeOH, 95:5).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815901B2
Source datasetuspto-grants-2014_08
ORD IDord-0339618f8a6e46059fe2626cebb4e734
Source noteuspto-grants-2014_08