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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 43125Generated: October 30, 2026

8-(2-Fluoro-3,5-dimethoxy-phenyl)quinoxaline-5-carboxylic acid → 8-(2-Fluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid [5-(4-ethyl-piperazin-1-ylmethyl)-pyridin-2-yl]-amide

https://huagongshe.com/reaction/43125

Reaction equation

Participants

RoleNameHCIDCharge
Reactant8-(2-Fluoro-3,5-dimethoxy-phenyl)quinoxaline-5-carboxylic acidHCID 59292866—
Reactant5-((4-Ethylpiperazin-1-yl)methyl)pyridin-2-amine hydrochlorideHCID 66914536—
Product8-(2-Fluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid [5-(4-ethyl-piperazin-1-ylmethyl)-pyridin-2-yl]-amideHCID 59292919—

Reaction Steps

The title compound was prepared in analogy to the procedure described in Step 14.1 but using 8-(2-fluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid (Step 94.1), 5-(4-ethyl-piperazin-1-ylmethyl)-pyridin-2-ylamine hydrochloride (Step 26.1) and stirring the reaction mixture for 6 days at rt. The crude product was purified by silica gel column chromatography (DCM/MeOH/NH3aq, 94:5:1). Title compound: ESI-MS: 531.2 [M+H]+; tR=3.40 min (System 1); TLC: Rf=0.19 (DCM/MeOH/NH3aq, 94:5:1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08536175B2
Source datasetuspto-grants-2013_09
ORD IDord-06e3f1cba5e94617ae85d7c8a54ed400
Source noteuspto-grants-2013_09