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Alkaloids from Fritillaria Hupehensis
Abstract
Phytochemical investigation of the bulbs of Fritillaria hupehensis resulted in the isolation and structural elucidation of a new highly conjugated alkaloid of veratramine type identified as 3β,23β-dihydroxy-7,12(14)-dien-5α-veratramin-6-one (1), together with two known alkaloids, ebeinine (2) and zhebeinine (3), which were isolated for the first time from F. hupehensis. The structures of alkaloids 1–3 were established by extensive 1D and 2D NMR spectral analyses.
