IUPAC:methyl (1R,12R,19S)-12-ethyl-5-hydroxy-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6,9,13-pentaene-10-carboxylate
IUPAC:methyl (1R,12R,19S)-12-ethyl-5-hydroxy-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2,4,6,9,13-pentaene-10-carboxylate