2a,3a-epoxy-3a,4a,5,6,7,7a-hexahydro-3a alpha,6 beta,7 beta-trihydroxy-5 alpha-isopropyl-7a alpha- methylspiro(indan-1,2'-oxirane) gamma-lactone
2a,3a-epoxy-3a,4a,5,6,7,7a-hexahydro-3a alpha,6 beta,7 beta-trihydroxy-5 alpha-isopropyl-7a alpha- methylspiro(indan-1,2'-oxirane) gamma-lactone