IUPAC:methyl (1R,13S,15R,17S)-17-ethyl-13-[(1R,9R,10S,11R,12R,19R)-12-ethyl-10-(hydrazinecarbonyl)-10,11-dihydroxy-5-methoxy-8-methyl-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2(7),3,5,13-tetraen-4-yl]-17-hydroxy-1,11-diazatetracyclo[13.3.1.0^{4,12}.0^{5,10}]nonadeca-4(12),5,7,9-tetraene-13-carboxylate
IUPAC:methyl (1R,13S,15R,17S)-17-ethyl-13-[(1R,9R,10S,11R,12R,19R)-12-ethyl-10-(hydrazinecarbonyl)-10,11-dihydroxy-5-methoxy-8-methyl-8,16-diazapentacyclo[10.6.1.0^{1,9}.0^{2,7}.0^{16,19}]nonadeca-2(7),3,5,13-tetraen-4-yl]-17-hydroxy-1,11-diazatetracyclo[13.3.1.0^{4,12}.0^{5,10}]nonadeca-4(12),5,7,9-tetraene-13-carboxylate