IUPAC:(3Z)-4-(N-methylformamido)-3-[(2-methylpropyl)disulfanyl]pent-3-en-1-yl 4-({2-[(4-{[(19S)-19-ethyl-19-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.0^{2,11}.0^{4,9}.0^{15,20}]henicosa-1(21),2,4,6,8,10,15(20)-heptaen-7-yl]oxy}-4-oxobutyl)sulfanyl]propan-2-yl}sulfanyl)butanoate
IUPAC:(3Z)-4-(N-methylformamido)-3-[(2-methylpropyl)disulfanyl]pent-3-en-1-yl 4-({2-[(4-{[(19S)-19-ethyl-19-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.0^{2,11}.0^{4,9}.0^{15,20}]henicosa-1(21),2,4,6,8,10,15(20)-heptaen-7-yl]oxy}-4-oxobutyl)sulfanyl]propan-2-yl}sulfanyl)butanoate