IUPAC:methyl (1R,9R,11S,14E,15R,17S,19R)-14-ethylidene-2-(methoxymethyl)-18-oxa-2,12-diazahexacyclo[9.6.1.1^{9,15}.0^{1,9}.0^{3,8}.0^{12,17}]nonadeca-3(8),4,6-triene-19-carboxylate
IUPAC:methyl (1R,9R,11S,14E,15R,17S,19R)-14-ethylidene-2-(methoxymethyl)-18-oxa-2,12-diazahexacyclo[9.6.1.1^{9,15}.0^{1,9}.0^{3,8}.0^{12,17}]nonadeca-3(8),4,6-triene-19-carboxylate