Quinoline alkaloids from Orixa japonica
1994; Elsevier BV; Volume: 36; Issue: 2 Linguagem: Inglês
10.1016/s0031-9422(00)97107-3
ISSN1873-3700
AutoresShinji Funayama, Kiyoshi Murata, Shigeo Nozoe,
Tópico(s)Phytochemistry and Biological Activities
ResumoSix quinoline alkaloids have been newly isolated from a n-hexane extract of Orixa japonica stems. Four alkaloids (pteleprenine, N-demethyllunidonine, N-methylflindersine and 8-methoxy-N-methylflindersine) are described for the first time in this species. Isopteleprenine was obtained as a natural product for the first time; (+)-isoptelefolidine is a new compound. Unambiguous 1H and 13C NMR assignments of pteleprenine and isopteleprenine have been achieved.
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