Showing structure for (1r,10s,13r,14r,15e,20s,22s)-15-ethylidene-4,10-dimethoxy-11-oxa-8,17-diazahexacyclo[12.5.2.1¹,⁸.0²,⁷.0¹⁷,²⁰.0¹³,²²]docosa-2,4,6-trien-9-one