Synonyms: 5H,17H-1,23:11,13-Diethano-2H,14H-[1,11]dioxacycloeicosino[2,3-b:12,13-b']dipyridine,eicosahydro-, [1R-(1R*,4aR*,11R*,12aS*,13S*,16aS*,23R*,24aS*)]-;(-)-Araguspongin E;(-)-Araguspongine E;(-)-Xestospongin C;Araguspongin E;Araguspongine E;Xestospongin C;Xestospongine C;