IUPAC:(3E,18Z)-11-ethyl-24,28-dihydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0^{5,16}.0^{8,15}.0^{9,13}]octacosa-1(28),3,18-triene-2,7,20,27-tetrone
IUPAC:(3E,18Z)-11-ethyl-24,28-dihydroxy-10-methyl-21,26-diazapentacyclo[23.2.1.0^{5,16}.0^{8,15}.0^{9,13}]octacosa-1(28),3,18-triene-2,7,20,27-tetrone