Chemistry of Trisdecacyclic Pyrazine Antineoplastics: The Cephalostatins and Ritterazines

被引:92
作者
Lee, Seongmin [2 ]
LaCour, Thomas G. [1 ]
Fuchs, Philip L. [1 ]
机构
[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA
[2] Harvard Univ, Dept Chem & Chem Biol, Cambridge, MA 02138 USA
基金
美国国家卫生研究院;
关键词
HEXACYCLIC STEROID UNIT; ORNITHOGALUM-SAUNDERSIAE; CHOLESTANE GLYCOSIDES; SOLASODINE GLYCOSIDES; STRUCTURE ELUCIDATION; EFFICIENT SYNTHESIS; ANTICANCER ACTIVITY; NATURAL COMPOUND; SYN-ELIMINATION; CANCER-CELLS;
D O I
10.1021/cr800365m
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A significant review on the chemistry of trisdecacyclic pyrazine antineoplastics is reported. The Pettit team worked to isolate the caphalostatins from hemochordate worm 'Cephalodiscus gilchristi' to find natural products of medicinal significance, while the Fusetani team isolated the ritterazines from the tunicate 'Ritterella tokioka'. The cephalostatins and ritterazines, a family of 45 trisdecacyclic bissteroidal pyrazines, showed excellent cytotoxicity against human tumors. It was also found that all cephalostatins possess two highly oxygenated steroidal spiroketal units linked by a central pyrazine ring. Fusetani's group also conducted the structure determination of 26 ritterazines from extracts of the tunicate Ritterella tokioka. The National Cancer Institute tested and declared cephalostatins as the most powerful anticancer agents.
引用
收藏
页码:2275 / 2314
页数:40
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