IUPAC:(3S,7R)-15-hydroxy-11,18-dimethoxy-6,8,20-trioxapentacyclo[10.8.0.0^{2,9}.0^{3,7}.0^{14,19}]icosa-1,4,9,11,14,16,18-heptaen-13-one
IUPAC:(3S,7R)-15-hydroxy-11,18-dimethoxy-6,8,20-trioxapentacyclo[10.8.0.0^{2,9}.0^{3,7}.0^{14,19}]icosa-1,4,9,11,14,16,18-heptaen-13-one