Showing structure for methyl (1s,9r,10s,13e,14r,15r)-15-[(acetyloxy)methyl]-13-ethylidene-18-oxa-8,11-diazapentacyclo[7.6.3.1¹⁰,¹⁴.0¹,⁹.0²,⁷]nonadeca-2,4,6-triene-15-carboxylate