Synthesis and cytotoxicity of novel indirubin-5-carboxamides
摘要:
Indirubins have been reported to act as potent inhibitors of protein kinases relevant to tumorigenesis and of tumor cell growth, but their development to antitumor drugs suffer from their poor water solubility. We synthesized a novel class of indirubin derivatives, indirubin-5-carboxamides, carrying amide substituents with basic centers. Quaternization or protonation of these alkylamino substituents provided indirubins with significantly improved solubility without loss of bioactivity. (C) 2010 Elsevier Ltd. All rights reserved.
Synthesis and cytotoxicity of novel indirubin-5-carboxamides
摘要:
Indirubins have been reported to act as potent inhibitors of protein kinases relevant to tumorigenesis and of tumor cell growth, but their development to antitumor drugs suffer from their poor water solubility. We synthesized a novel class of indirubin derivatives, indirubin-5-carboxamides, carrying amide substituents with basic centers. Quaternization or protonation of these alkylamino substituents provided indirubins with significantly improved solubility without loss of bioactivity. (C) 2010 Elsevier Ltd. All rights reserved.
Sur quelques dérivés de l'oxindole et de l'isatine. III. Les acides isatine-carboxyliques-5 et -6
作者:Edgardo Giovannini、Plato Portmann
DOI:10.1002/hlca.19480310525
日期:——
Description d'une synthèse sûre de la carboxy-6-isatine à partir du carboxy-6-oxindole, réalisée soit en passant par l'oxime, selon la méthode de Baeyer, soit par oxydation directe au moyen de bioxyde de sélénium.