35846-53-8COc1cc2cc(c1Cl)N(C)C(=O)C[C@@H](OC(=O)[C@@H](C)N(C)C(C)=O)[C@]1(C)O[C@H]1[C@H](C)[C@@H]1C[C@@](O)(NC(=O)O1)[C@@H](OC)/C=C/C=C(\C)C2WKPWGQKGSOKKOO-RJXPSCPHSA-N安全情報は参考情報です。供給元の安全データシート(SDS)、適用法令、専門家による評価に代わるものではありません。
説明This novel ansa macrolide alkaloid occurs in a number of May tan us species. The structure given has been elucidated from chemical and spectroscopic data. In low doses (25-50 mcg/kg), maytansine prolonged the survival of mice bearing vincristine-sensitive P388 leukemia but not those bearing vincristine-resistant tumour lines. In vitro, it suppressed the growth of U21 0, LSl78Y and P388 leukemia cells with ED50 of 2 X 10-9 , 1.5 X 10-9 and 6 X 10-10M respectively and elevated the mitotic index in L 121 0 cells. From labelling studies it was shown that the alkaloid inhibited DNA formation by P388 cells to a greater extent than RNA and protein synthesis. Maytensine did not inhibit RNA polymerase from Escherichia coli at levels as high as 1 X 10-4M.
使用Antineoplastic.
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35846-53-8定義ChEBI: An organic heterotetracyclic compound and 19-membered macrocyclic lactam antibiotic originally isolated from the Ethiopian shrub Maytenus serrata but also found in other Maytenus species. It exhibits cytotoxicity against many tumo r cell lines.