Two new steroidal alkaloids from bulbs of Fritillaria lichuanensis
Titel:
Two new steroidal alkaloids from bulbs of Fritillaria lichuanensis
Auteur:
Pi, H. -f. Ruan, H. -l. Zhan, Y. -h. Wu, J. -z.
Verschenen in:
Journal of Asian natural products research
Paginering:
Jaargang 8 (2006) nr. 3 pagina's 253-257
Jaar:
2006-04
Inhoud:
Two new steroidal alkaloids, lichuanine (1) and lichuanisinine (2), were isolated from the bulbs of Fritillaria Lichuanensis P. Li et C.P. Yang. Their structures were determined to be (20S,25R)-5α, 14α-cevanine-3β, 6β-diol (1) and (20S,25S)-5α,14α-cevanine-3β,6β-diol-N-oxide (2) by means of spectral analysis and chemical evidence.