Ent-kauranes and oleananes from Croton lacciferus
β Scribed by B.M.Ratnayake Bandara; W.R. Wimalasiri; John K. Macleod
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 250 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0031-9422
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
## Abstract One new __ent__β8,9βsecokaurane diterpene, kongensin D (**1**), and one new __ent__βkaurane diterpene, kongensin E (**2**), along with one known compound, (7__Ξ±__)β7,18βdihydroxyβ__ent__βkaurβ16βenβ15βone 18βacetate (**3**), were isolated from the aerial parts of __Croton kongensis.__ T
## Abstract Two new __ent__βkaurane diterpenes, wedelidins A (**8**) and B (**9**), together with eighteen other constituents, including the sesquiterpenoids **1** and **2**, __ent__βkaurane diterpenes **3**β**7**, triterpenoids **10** and **11**, steroids **12**β**14**, and flavonoids **15**β**17*
Bisjaponins A (1) and B (2), two new dimeric ent-kaurane diterpenoids connected with a rare four-membered carbon ring, which was formed by [2+2] reaction, were isolated from the aerial parts of Isodon japonicus. Their structures were elucidated by the analysis of spectroscopic evidence including ext