Showing structure for (1s,8s,9s,10s,11s,12s,13r,16s,17e,19e,21r,24s)-21-ethyl-9,11,16-trihydroxy-13-methoxy-10,12,16,18,24-pentamethyl-2,22,26-trioxatricyclo[19.3.1.1⁵,⁸]hexacosa-5,17,19-triene-3,7,23-trione