Reaktion #71373

Reaktionsgleichung

8-(4-methylthiophen-3-yl)-quinoxaline-5-carboxylic acid

5-(4-methyl-piperazin-1-ylmethyl)-pyridin-2-ylamine hydrochloride

8-(2,6-Dichloro-3,5-dimethoxy-phenyl)-quinoxaline-5-carboxylic acid [5-(4-methyl-piperazin-1-ylmethyl)-pyridin-2-yl]amide

4-methyl-3-thiopheneboronic acid

TBTU

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Title compound

8-(4-Methyl-thiophen-3-yl)-quinoxaline-5-carboxylic acid [5-(4-methyl-piperazin-1-ylmethyl)-pyridin-2-yl]-amide

Lösungsmittel

DCM MeOH

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe title compound was prepared in analogy to the procedure

Vorschrift

The title compound was prepared in analogy to the procedure described in Step 14.1 but stirring the reaction mixture at it overnight, using 2 equiv of 5-(4-methyl-piperazin-1-ylmethyl)-pyridin-2-ylamine hydrochloride (Example 31), TBTU (2 equiv) and 8-(4-methylthiophen-3-yl)-quinoxaline-5-carboxylic acid. The carboxylic acid was synthesized as described in Steps 1.2-1.7 but using 4-methyl-3-thiopheneboronic acid in Step 1.4. Title compound: ESI-MS: 459.1 [M+H]+; tR=3.41 min (System 1); TLC: Rf=0.25 (DCM/MeOH, 9:1).

Quelle