Synonyms: (13E,16S,18R,19E)-7,18-Dihydroxy-10-phenyl-16,18-dimethyl-5,6-didehydro-21,23-dioxa[13]cytochalasa-13,19-diene-1,17,22-trione;(13E,16S,18R,19E)-7,18-Dihydroxy-16,18-dimethyl-10-phenyl-21,23-dioxa[13]cytochalasa-5,13,19-triene-1,17,22-trione