| abstract |
(57) [Summary] [Objective] A topoisomerase inhibitor that can be used as a carcinostatic agent having an antimetabolite action that inhibits the action of topoisomerase that relaxes the supercoiled DNA structure of cancer cells by administration to cancer cells, for example. obtain. [Structure] A tannin compound, in particular, a compound containing pedunculagin represented by the chemical structural formula 1 below as an active ingredient. [Chemical 1] |