2(5H)-Furanone, 4-(2-(8a-((acetyloxy)methyl)octahydro-8-hydroxy-5,6-dimethylspiro(naphthalene-1(2H),2'-oxiran)-5-yl)ethyl)-, (1R-(1alpha,4abeta,5beta,6alpha,8alpha,8aalpha))- 62640-06-6 Ajugarin II