Figure 9.
Chemical structures of compounds 220–251. Diterpenes 220–221 were isolated from D. fasciola, diterpenes 222–223 were isolated from D. fenestrate, diterpene 224 was isolated from D. friabilis, diterpenes 225–227 were isolated from D. furcellata, sterol 228 was isolated from D. hauckiana, diterpenes 229–239 were isolated from D. menstrualis, diterpenes 240–242 were isolated from D. pinnatifida, and diterpenes 243–251 were isolated from D. plectens. The configuration of all stereocenters in each compound is shown as given in the literature.
