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J Integr Plant Biol, 2005, 47 (1): 120-123, Research Article
Two New Diterpenoid Alkaloids from Spiraea japonica L. f. var. fortunei (Planchon) Rehd.
Li-Ming FAN, Hong-Ping HE, Yue-Mao SHEN and Xiao-Jiang HAO
doi: 10.1111/j.1744-7909.2005.00007.x
Abstract
Two new hetisine-type C20-diterpenoid alkaloids named spiraqine (1) and 6-hydroxylspiraqine (2), and four known alkaloids, namely spiredine (3), spiradine A (4), spiradine B (5), and spirasine V/VI (6), were isolated from Spiraea japonica L. f. var. fortunei (Planchon) Rehd. The structures of the alkaloids were elucidated using nuclear magnetic resonance analysis (1H-NMR, 13C-NMR, DEPT, HMQC, and HMBC) and mass spectrometry data.
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