IUPAC:(4R,8S)-17-chloro-2,18-dimethoxy-7,9,13-trioxapentacyclo[10.8.0.0^{3,10}.0^{4,8}.0^{14,19}]icosa-1,3(10),5,11,14,16,18-heptaen-20-one
IUPAC:(4R,8S)-17-chloro-2,18-dimethoxy-7,9,13-trioxapentacyclo[10.8.0.0^{3,10}.0^{4,8}.0^{14,19}]icosa-1,3(10),5,11,14,16,18-heptaen-20-one