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Pingbeinone, a novel steroidal alkaloid having C-18 nor cevane skeleton from Fritillaria ussuriensis Maxim

✍ Scribed by Yukie Kitamura; Makoto Nishizawa; Koh Kaneko; Motoo Shiro; Yuh-Pan Chen; Hong-Yen Hsu

Publisher: Elsevier Science
Year: 1989
Tongue: French
Weight: 139 KB
Volume: 30
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)80559-1

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✦ Synopsis

A novel stroidal alkaloid, having C-18 nor cevane skeleton, pingbeinone (l), was isolated from /Willaria ussuriensis Maxim. The structure was established by X-ray crystallographic analysis of its hydrogen iodide.

An important Chinese medicine "Bei-mu", dried bulbs of Frifillaria genus, has been

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Two new steroidal alkaloids having a novel seven ring skeleton, ussurienine (1) and ussurienone (2), were isolated from the HCI-MeOH hydrolyzed alkaloid fraction of fritillaria ussuriensis Maxim. (Ping-bei-mu). Continuous study on the same plant, however, showed that 1 and 2 were the artifacts deri