Showing structure for (1r,2s,4'ar,7'r,8's,8'ar)-2,8'-dihydroxy-2,4'a,8'-trimethyl-3'-oxo-hexahydrospiro[cyclopropane-1,2'-naphthalen]-7'-yl (2s,3s)-2,3-dimethyloxirane-2-carboxylate