IUPAC:methyl (1R,9R,16R,18R,21S)-2,12-diazahexacyclo[14.2.2.1^{9,12}.0^{1,9}.0^{3,8}.0^{16,21}]henicosa-3(8),4,6,14-tetraene-18-carboxylate
IUPAC:methyl (1R,9R,16R,18R,21S)-2,12-diazahexacyclo[14.2.2.1^{9,12}.0^{1,9}.0^{3,8}.0^{16,21}]henicosa-3(8),4,6,14-tetraene-18-carboxylate