Dukunolide D, E and F: New tetranortriterpenoids from the seeds of Lansium domesticum
✍ Scribed by Mugio Nishizawa; Yayoi Nademoto; Setijati Sastrapradja; Motoo Shiro; Yuji Hayashi
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 187 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0031-9422
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Carapolides D and E, two new ring E cleaved tetranortriterpenoids, and carapolide F, a novel tetranortriterpenoid spirolactone, have been isolated from the seeds of Carapa grandiflora and have been assigned structures (l),(3) and (6) on the basis of their 1 H and 13 C spectroscopic properties.
## Abstract Five new tetranortriterpenoids, toonaciliatones B–F (**1**–**5**, resp.), together with four known compounds, dihydrocedrelone (**6**), cedrelone (**7**), 6__α__‐acetoxyazadirone (**8**), and 6__α__‐acetoxy‐14__β__,15__β__‐epoxyazadirone (**9**), were isolated from the seeds of __Toona
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## Abstract Together with 17 known compounds, three new cyanoglycosides named hydracyanosides D (I), E (II), and F (III) are isolated from the leaves of Hydrangea macrophylla cultivated in China.