Showing structure for 1-[(1s,12s,13r,18r)-20-methyl-15-oxa-3,20-diazapentacyclo[10.7.1.0²,¹⁰.0⁴,⁹.0¹³,¹⁸]icosa-2(10),4,6,8,16-pentaen-17-yl]ethanone