Hederagenin as a triterpene template for the development of new antitumor compounds

• Autor(a) principal: Rodríguez-Hernández, Diego
• Data de Publicação: 2015
• Outros Autores: Demuner, Antonio J., Barbosa, Luiz C.A., Csuk, René, Heller, Lucie
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: https://doi.org/10.1016/j.ejmech.2015.10.006; http://www.locus.ufv.br/handle/123456789/19427
• topic: Sapindus saponaria; Pentacyclic triterpenes; Hederagenin derivatives; SRB assay; Folk medicinal plant

In this study, a series of novel C-28 esters and amides derivatives of hederagenin (He) were designed and synthesized in attempt to develop potent antitumor agents. Their structures were confirmed by MS, IR, 1H NMR and ^13C NMR spectroscopic analyses and their cytotoxic activities were screened in SRB assays using a panel of six human cancer cell lines. Although most of the compounds displayed moderate to high levels of cytotoxic activity they were all more potent than the natural product He. The most active compounds had either an ethylpyrimidinyl (27) or an ethylpyrrolidinyl (28) substituent, with EC50 in the range of 1.1–6.5 μM for six human cancer cell lines. Notably, this corresponds to an approximately 30-fold times greater potency than He.