55121-99-8,With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.55121-99-8,(4-Aminophenyl)(4-methylpiperazin-1-yl)methanone,as a common compound, the synthetic route is as follows.
(11) methyl 3-(Z)-[1-{4-[(4-methyl-piperazin-1-yl)-carbonyl]-phenylamino}-1-phenyl-methylidene]-2-indolinone-6-carboxylate Prepared from 1-acetyl-3-(1-ethoxy-1-phenylmethylene)-6-methoxycarbonyl-2-indolinone and 4-(4-methyl-piperazin-1-yl-carbonyl)-aniline. Yield: 0.1 g (23% of theoretical), Melting point: 196-197 C.
As the paragraph descriping shows that 55121-99-8 is playing an increasingly important role.
Reference£º
Patent; Roth, Gerald Juergen; Heckel, Armin; Lehmann-Lintz, Thorsten; Kley, Joerg; Hilberg, Frank; Van Meel, Jacobus; US2003/92756; (2003); A1;,
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