HIRSUTINOLIDES FROM SOUTH AFRICAN VERNONIA SPECIES

Article abstract of DOI:10.1016/0031-9422(83)80212-X

The investigation of four South African Vernonia species afforded, in addition to known compounds, six ketohirsutinolides with different oxygen functions at C-8 and C-13, respectively.Furthermore, an eremantholide was present, which was the 16-epimer of a known compound and two sesquiterpene aldehydes were isolated. - Key Word Index: Vernonia glabra var. glabra; V. poskeana var. poskeana; V. poskeana var. chlorolepis; V. neocorymbosa; Compositae; sesquiterpene lactones; hirsutinolides; sesquiterpene aldehydes.