IUPAC:2-{7-[4-(dimethylamino)-4-methylpent-2-ynoyl]-1-oxo-2,7-diazaspiro[4.4]nonan-2-yl}-N-{22-ethyl-21-[2-(1-methoxyethyl)pyridin-3-yl]-18,18-dimethyl-9,15-dioxo-16-oxa-10,22,28-triazapentacyclo[18.5.2.1^{2,6}.1^{10,14}.0^{23,27}]nonacosa-1(25),2(29),3,5,20,23,26-heptaen-8-yl}-3-methylbutanamide
IUPAC:2-{7-[4-(dimethylamino)-4-methylpent-2-ynoyl]-1-oxo-2,7-diazaspiro[4.4]nonan-2-yl}-N-{22-ethyl-21-[2-(1-methoxyethyl)pyridin-3-yl]-18,18-dimethyl-9,15-dioxo-16-oxa-10,22,28-triazapentacyclo[18.5.2.1^{2,6}.1^{10,14}.0^{23,27}]nonacosa-1(25),2(29),3,5,20,23,26-heptaen-8-yl}-3-methylbutanamide