Showing structure for (20r,21r)-5,6,10,11-tetramethoxy-16-azapentacyclo[12.7.0.0²,⁷.0⁸,¹³.0¹⁶,²⁰]henicosa-1(14),2(7),3,5,8(13),9,11-heptaen-21-ol