141
Plate 12a Photograph of L. brassicoides
Plate 12b A close-up photograph of L. brassicoides
as L. brassicoides, but because its morphology is also similar to L. liatroides
(C. Winkler) Handel-Mazzetti, the species remains unidentified at present
[46]. Sample 3 produced eremoligenol (14), an ethyl ester (40), two
10H-furanoeremophilanes (160 and 163), three 10-OH-furanoeremophilanes (226,
227, and 228), four eremophilanolides (356, 359, 389, and 553), three lactols (563,
564, and 565), two eudesmanes (789 and 790) the hetero-Diels-Alder-type dimer
594, the homo dimer 579, bakkenolide A (629), and lupeol (828) [47]. Compound
594 was formed from tetradymol (215) (not isolated from sample 3) and methacrylic acid by a Diels-Alder reaction, and compound 579 characterized as a homo
Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity…
Plate 12a Photograph of L. brassicoides
Plate 12b A close-up photograph of L. brassicoides
as L. brassicoides, but because its morphology is also similar to L. liatroides
(C. Winkler) Handel-Mazzetti, the species remains unidentified at present
[46]. Sample 3 produced eremoligenol (14), an ethyl ester (40), two
10H-furanoeremophilanes (160 and 163), three 10-OH-furanoeremophilanes (226,
227, and 228), four eremophilanolides (356, 359, 389, and 553), three lactols (563,
564, and 565), two eudesmanes (789 and 790) the hetero-Diels-Alder-type dimer
594, the homo dimer 579, bakkenolide A (629), and lupeol (828) [47]. Compound
594 was formed from tetradymol (215) (not isolated from sample 3) and methacrylic acid by a Diels-Alder reaction, and compound 579 characterized as a homo
Chemical Constituents of Ligularia Species (Asteraceae) and Their Diversity…