Showing structure for methyl (1r,13e,16s)-18-(acetyloxy)-13-ethylidene-8-methyl-8,15-diazahexacyclo[14.2.1.0¹,⁹.0²,⁷.0¹⁰,¹⁵.0¹²,¹⁷]nonadeca-2,4,6-triene-17-carboxylate