Showing structure for (1r,12s,13r,14r,23s)-4,18-dimethoxy-13,14-dimethyl-2,6,8,20,22-pentaoxahexacyclo[10.10.1.0¹,¹⁹.0³,¹¹.0⁵,⁹.0¹⁶,²³]tricosa-3(11),4,9,15,18-pentaen-17-one