IUPAC:(1R,3S,7R,9S,12R,14R,15S,17R,23E,28S)-28-hydroxy-10,16-dimethyl-4,19-dioxo-2,5,13,18,25-pentaoxaspiro[hexacyclo[22.3.1.1^{14,17}.0^{1,3}.0^{7,12}.0^{7,16}]nonacosane-15,2'-oxirane]-10,20,23-trien-9-yl acetate
IUPAC:(1R,3S,7R,9S,12R,14R,15S,17R,23E,28S)-28-hydroxy-10,16-dimethyl-4,19-dioxo-2,5,13,18,25-pentaoxaspiro[hexacyclo[22.3.1.1^{14,17}.0^{1,3}.0^{7,12}.0^{7,16}]nonacosane-15,2'-oxirane]-10,20,23-trien-9-yl acetate