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New steroidal alkaloids from fritillaria ussuriensis maxim. Pingbeinone and Heilonine

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

Publisher
Elsevier Science
Year
1989
Tongue
French
Weight
330 KB
Volume
45
Category
Article
ISSN
0040-4020

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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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New steroidal alkaloids having a novel seven ring skeleton from fritillaria ussuriensis maxim
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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