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Five new subspicatins and noreremophilane from Paraseneciopetasitoides collected in China |
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| Authors: | Yoshinori SaitoMayu Ichihara Yasuko OkamotoXun Gong Chiaki KurodaMotoo Tori |
| Institution: | a Faculty of Pharmaceutical Sciences, Tokushima Bunri University, Yamashiro-cho, Tokushima 770-8514, Japan b Kunming Institute of Botany, Chinese Academy of Science, Kunming 650204, China c Department of Chemistry, Rikkyo University, Nishi-Ikebukuro, Toshima-ku, Tokyo 171-8501, Japan |
| Abstract: | Five new 1β-angeloyloxyeremophilanolides (subspicatins H-L) and 1β-angeloyloxytetranoreremophilanone (norsubspicatin A), were isolated from the EtOAc extracts of Parasenecio petasitoides and their structures established on the basis of spectroscopic analyses. They are biogenetically mutually related to each other and represent a new category in the Parasenecio group. These findings suggest that there is diversity in this species, too. |
| Keywords: | Parasenecio petasitoides Asteraceae Subspicatins Eremophilanes Sesquiterpenes |
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