477-83-8Relevant articles and documents
Anthraquinones from Neonauclea calycina and their inhibitory activity against DNA topoisomerase II
Tosa, Hideki,Iinuma, Munekazu,Asai, Fujio,Tanaka, Toshiyuki,Nozaki, Hiroshi,Ikeda, Shougo,Tsutsui, Ken,Tsutsui, Kimiko,Yamada, Masashi,Fujimori, Shiho
, p. 641 - 642 (1998)
In a series of searches for DNA topoisomerase II inhibitors from naturally occurring compounds, a wood extract of Neonauclea calycina MERR. (Rubiaceae) showed a moderate effect in vitro. Purification of the extract resulted in the isolation of seven known anthraquinones. The structures were characterized as damnacanthal, rubindin 1-methyl ether, nordamnacanthal, morindone, damnacanthol, lucidin 3-O-primeveroside and morindone 6-O- primeveroside by spectral analysis, respectively. Damnacanthal and morindone showed an intensive inhibitory effect against topoisomerase II (IC50: 20 μg/ml and 21 μg/ml).
New anthraquinone glycosides from the roots of Morinda citrifolia
Kamiya, Kohei,Hamabe, Wakako,Tokuyama, Shogo,Satake, Toshiko
, p. 196 - 199 (2009)
Six new anthraquinone glycosides: digiferruginol-1-methylether-11-O-β-gentiobioside (1); digiferruginol-11-O-β-primeveroside (2); damnacanthol-11-O-β-primeveroside (3); 1-methoxy-2-primeverosyloxymethyl-anthraquinone-3-olate (4); 1-hydroxy-2-primeverosylo