Synonyms: Spiro[furan-2(5H),7'-[2,5]methano[7H]oxireno[3,4]cyclopent[1,2-d]oxepin]-3',5(2'H)-dione,octahydro-1'b-hydroxy-6'-methoxy-4-(1-methoxyethylidene)-6'a-methyl-8'-(1-methylethyl)-,[1'aS-[1'aa,1'bb,2'b,5'b,6'a,6'ab,7'b(E),7'aa,8'R*]]-; Picrodendrin Q