Showing structure for 6-ethylidene-3-hydroxy-11,20-dimethyl-4,21-dioxa-11,20-diazahexacyclo[8.7.3.2²,⁹.0¹,¹⁰.0²,⁷.0¹²,¹⁷]docosa-12,14,16-trien-22-one