J Integr Plant Biol. ›› 1991, Vol. 33 ›› Issue (7): -.
• Research Articles •
Chen Yan, Fang Sheng-ding, Li Hong-wen, Li Yu-hui and Yang He-ming
Abstract: Eight alkaloids have been isolated from the roots of Stephania lincangensis H. S. Lo. et M. Yang which is a novel species growing in Lincang district of Yunnan province. The structures of these compounds were identified as 1-tetrahydropalmatine (Ⅰ), capaurine (Ⅱ) isocorydine (Ⅲ), corydine (Ⅳ), roemerine (Ⅴ) and palmatine (Ⅵ) by means of spectral and chemical methods. Two others, namely lincangenine [4-hydroxy-2,3,9,10-pentamethoxyprotoberberine (Ⅶ)] and l-l,2,3,9,10-pentamethoxytetrahydroprotoberberine (Ⅷ), are new alkaloids, l-tetrahydropalmatine is the main alkaloid with 2.39% yield.
Key words: Stephania lincangensis, Alkaloids, Lincangenine, 1-1,2,3,9,10-pentameth-Oxytetrahydroprotoberberine
Chen Yan, Fang Sheng-ding, Li Hong-wen, Li Yu-hui and Yang He-ming. Studies on the Alkaloids of Stephania lincangensis[J]. J Integr Plant Biol., 1991, 33(7): -.
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