13-Hydroxy-9-(1-hydroxy-ethyl)-3-[4-(3-hydroxy-phenyl)-4-methoxy-1-methyl-butyl]-4,14,16,16-tetramethyl-2,6,10,17-tetraoxa-tricyclo[11.3.1.11,5]octadecane-7,11-dione AIDS-065855 AIDS065855 Debromoaplysia toxin NSC271679