Scholarisines H–O, novel indole alkaloid derivatives from long-term stored Alstonia scholaris
2014; Elsevier BV; Volume: 71; Issue: 22 Linguagem: Inglês
10.1016/j.tet.2014.09.052
ISSN1464-5416
AutoresXing‐Wei Yang, Xiao‐Dong Luo, Paul Keilah Lunga, Yun‐Li Zhao, Xu‐Jie Qin, Yingying Chen, Lu Liu, Xiao‐Nian Li, Yaping Liu,
Tópico(s)Berberine and alkaloids research
ResumoEight new monoterpenoid indole and quinoline alkaloids, scholarisines H–O (1–8), together with six known analogues, were isolated from seven-year stored leaves of Alstonia scholaris. Their structures were elucidated on the basis of comprehensive spectroscopic data and X-ray diffraction. The obtained compounds were presumably derived from the known precursors by mild oxidation during the post-harvest storage.
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