(2R,3S,5R,6R,7R)-2-Hydroxy-12-(2-hydroxy-2-propanyl)-7-methyl-11H-spiro[4,10-dioxatetracyclo[7.2.1.02,7.03,5]dodecane-6,2'-oxiran]-11-one; (1S,2R,3S,5R,6R,7R,9S,12S)-2-Hydroxy-12-(2-hydroxy-2-propanyl)-7-methyl-11H-spiro[4,10-dioxatetracyclo[7.2.1.0.0]dodecane-6,2'-oxiran]-11-one; Spiro[2,5-Methano-7H-oxireno[3,4]cyclopent[1,2-d]oxepin-7,2'-oxiran]-3(2H)-one,hexahydro-1b-hydroxy-8-(1-hydroxy-1-Methylethyl)-6a-Methyl-,(1aS,1bR,2R,2'R,5R,6aR,7aR,8S)-; Ma sang Ting
