(13)Cytochalasa-13,17-diene-1,19,23-trione, 6,7-epoxy-20-hydroxy-10-(1H-indol-3-yl)-16,18-dimethyl-, (7S,13E,16S,17E,20S)- (7S,13E,16S,17E,20S)-6,7-Epoxy-20-hydroxy-10-(1H-indol-3-yl)-16,18-dimethyl-(13)cytochalasa-13,17-diene-1,19,23-trione 55945-75-0