Isolation of Plakinamine I: A New Steroidal Alkaloid from the Marine SpongeCorticiumsp. and Synthesis of an Analogue Model Compound
作者:Angela Zampella、Rosa D'Orsi、Valentina Sepe、Simona De Marino、Nicola Borbone、Alexis Valentin、Cécile Debitus、Franco Zollo、Maria Valeria D'Auria
DOI:10.1002/ejoc.200500364
日期:2005.10
A new cytotoxic steroidal alkaloid, plakinamine I, with an unprecedented 3α-amino-19-acetoxy nucleus was isolated from a Corticium sp. sponge. The structure has been elucidated by spectroscopic analysis and secured by the synthesis of the model 19-acetoxy-3α-aminocholestane. The evaluation of the cytotoxic activities of several synthetic derivatives, intermediates of the above synthesis, allowed us
一种新的细胞毒性甾体生物碱,plakinamine I,具有前所未有的 3α-amino-19-acetoxy 核是从 Corticium sp. 中分离出来的。海绵。该结构已通过光谱分析阐明,并通过模型 19-乙酰氧基-3α-氨基胆甾烷的合成得到保护。对几种合成衍生物(上述合成的中间体)的细胞毒活性的评估使我们能够探索不同功能对观察到的天然 plakinamine I 的细胞毒性的影响。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim , 德国, 2005)