Showing structure for (10s,12r,16s,17s,18r)-13-ethylidene-8,15-diazahexacyclo[14.2.1.0¹,⁹.0²,⁷.0¹⁰,¹⁵.0¹²,¹⁷]nonadeca-2,4,6,8-tetraen-18-yl acetate