Showing structure for (1r,2s,4s,5r,8r,9s,10r,13r,15r)-15-(acetyloxy)-10-hydroxy-5-(methoxycarbonyl)-5,9-dimethyl-14-methylidene-2-(propanoyloxy)tetracyclo[11.2.1.0¹,¹⁰.0⁴,⁹]hexadecan-8-yl (2s,3r)-2,3-dimethyloxirane-2-carboxylate