Showing structure for (13z)-13-ethylidene-4-methoxy-8-methyl-8,15-diazahexacyclo[14.2.1.0¹,⁹.0²,⁷.0¹⁰,¹⁵.0¹²,¹⁷]nonadeca-2,4,6-trien-18-yl acetate