Synonyms: 8,12,45,46,47,48,50-Heptaoxaheptacyclo[39.3.1.11,5.19,13.115,19.125,29.129,33]pentacont-23-ene-7,35-dione,3,37-bis(acetyloxy)-11-(7-chloro-4-hydroxy-2-methylene-5,7-octadienyl)-10,14,15,17,27,43-hexahydroxy-31-methoxy-18,36,38,43,49-pentamethyl-39-methylene-,[1S-[1R*,3R*,5S*,9S*,10S*,11S*(4R*,5E),13S*,14R*,15S*,17R*,18S*,19S*,23Z,25S*,27R*,29R*,31R*,33R*,36R*,37R*,38S*,41R*,43R*,49R*]]-;(+)-Spongistatin 1; Altohyrtin A; Spongistatin 1