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在石杉［Ｈｕｐｅｒｚｉａｓｅｒｒａｔａ（Ｔｈｕｎｂ．）Ｔｒｅｖ．］中分得了命名为石杉碱成素和已素的２个新生物碱，并用２Ｄ－ＮＭＲ和ＭＳ测定了它们的化学结构．
In the Huperziaserrata (Thunb.) Trev. ] Were assigned two new alkaloids named huperzine and hexamine and their chemical structures were determined by 2D-NMR and MS.