Showing structure for [(1r,2s,5r,6s,7s,9r,12r,16s)-5-(acetyloxy)-13-ethenyl-2,6-dimethyl-11-oxo-10-oxatetracyclo[7.6.1.0²,⁷.0¹²,¹⁶]hexadec-13-en-6-yl]methyl acetate