HERTZBERG, ROBERT P.;CARANFA, MARY JO.;HOLDEN, KENNETH G.;JAKAS, DALIA R.+, J. MED. CHEM., 32,(1989) N, C. 715-720
作者:HERTZBERG, ROBERT P.、CARANFA, MARY JO.、HOLDEN, KENNETH G.、JAKAS, DALIA R.+
DOI:——
日期:——
Modification of the hydroxylactone ring of camptothecin: inhibition of mammalian topoisomerase I and biological activity
作者:Robert P. Hertzberg、Mary Jo Caranfa、Kenneth G. Holden、Dalia R. Jakas、Gregory Gallagher、Michael R. Mattern、Shau Ming Mong、Joan O'Leary Bartus、Randall K. Johnson、William D. Kingsbury
DOI:10.1021/jm00123a038
日期:1989.3
Several camptothecin derivatives containing a modified hydroxy lactonering have been synthesized and evaluated for inhibition of topoisomerase I and cytotoxicity to mammalian cells. Each of the groups of the hydroxy lactone moiety, the carbonyl oxygen, the ringlactone oxygen, and the 20-hydroxy group, were shown to be critical for enzyme inhibition. For example the lactol, lactam, thiolactone, and