IUPAC:methyl (1R,12S,13R,14S,15E)-15-ethylidene-1-hydroxy-13-(hydroxymethyl)-3,17-diazapentacyclo[12.3.1.0^{2,10}.0^{4,9}.0^{12,17}]octadeca-2(10),4,6,8-tetraene-13-carboxylate
IUPAC:methyl (1R,12S,13R,14S,15E)-15-ethylidene-1-hydroxy-13-(hydroxymethyl)-3,17-diazapentacyclo[12.3.1.0^{2,10}.0^{4,9}.0^{12,17}]octadeca-2(10),4,6,8-tetraene-13-carboxylate