Autor: |
Sutthivaiyakit, S., Thongtan, J., Pisutjaroenpong, S., Jiaranantanont, K., Kongsaeree, P. |
Zdroj: |
Journal of Natural Products; May 25, 2001, Vol. 64 Issue: 5 p569-571, 3p |
Abstrakt: |
Three new D:A-friedo-oleanane lactones, viz., 3-oxo-D:A-friedo-oleanan-27,16α-lactone (1), 3α-benzoyloxy-D:A-friedo-oleanan-27,16α-lactone (2), and 3β-hydroxy-D:A-friedo-oleanan-27,16α-lactone (3) were isolated from the stems of Mallotus repandus. Extensive use of NMR spectroscopic techniques led to full assignment of all 1H and 13C chemical shifts. The structure for 2 was confirmed by X-ray diffraction analysis. |
Databáze: |
Supplemental Index |
Externí odkaz: |
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