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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2409724Generated: October 27, 2026

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

https://huagongshe.com/reaction/2409724

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
ReactantSodium BicarbonateHCID 516892—
Reactant5-[(3,3,4-Trimethyl-1-piperazinyl)methyl]-2-pyridinamineHCID 55216406—
Reactant8-(2,6-Difluoro-3,5-dimethoxyphenyl)quinoxaline-5-carboxylic acid ethyl esterHCID 86641145—
SolventDichloromethane methanolHCID 21226129—
Product8-(2,6-Difluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid [5-(3,3,4-trimethyl-piperazin-1-ylmethyl)-pyridin-2-yl]-amideHCID 44514464—

Reaction Steps

The title compound was prepared in analogy to the procedure described in Example 115 but using 8-(2,6-difluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid ethyl ester (Step 124.1), 5-(3,3,4-trimethyl-piperazin-1-ylmethyl)-pyridin-2-ylamine (Step 107.1), stirring the reaction mixture for 15 min at reflux, pouring it onto a saturated aqueous solution of NaHCO3 and DCM. Title compound: ESI-MS: 563.1 [M+H]+; tR=3.72 min (System 1); TLC: Rf=0.33 (DCM/MeOH/NH3aq, 94:5:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08815901B2
Source datasetuspto-grants-2014_08
ORD IDord-745816410dea4578b992d4f9c8093965
Source noteuspto-grants-2014_08