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

Participants

Reaction Steps

The title compound was prepared in analogy to the procedure described in Example 115 but using 8-(2-fluoro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid ethyl ester (Step 143.1), 5-(4-methyl-piperazin-1-ylmethyl)-pyridin-2-ylamine (Example 31; purified by silica gel column chromatography), and stirring the reaction mixture for 1 h at reflux. Title compound: ESI-MS: 517.1 [M+H]+; tR=3.37 min (System 1); TLC: Rf=0.11 (DCM/MeOH/NH3aq, 94:5:1).

Provenance & Evidence