Showing structure for 2,18-dimethyl 18-hydroxy-4,5-dimethoxy-2,12-diazahexacyclo[14.2.2.1⁹,¹².0¹,⁹.0³,⁸.0¹⁶,²¹]henicosa-3(8),4,6-triene-2,18-dicarboxylate