Showing structure for 6-methoxy-3,16,20-trimethyl-11-oxo-15-oxa-3,20-diazapentacyclo[10.7.1.0²,¹⁰.0⁴,⁹.0¹³,¹⁸]icosa-2(10),4,6,8,16-pentaene-17-carbaldehyde