Showing structure for (1r,2e,4s,6r,7r,8r,11e,13s,15e,17e,20r)-6-hydroxy-4-methoxy-1,7,11,13,15-pentamethyl-8-[(1e)-2-[(2r,3r)-3-methyloxiran-2-yl]ethenyl]-9,21-dioxabicyclo[18.1.0]henicosa-2,11,15,17-tetraene-10,14-dione