Fourteen unprecedented artificial Erythrina alkaloids were isolated from the Erythrina variegata, E. crista-galli and E. arborescens (Fabaceae). The structures of these alkaloids were determined by spectroscopic analyses. Their possible formations were proposed. All isolated compounds showed no cytotoxicity and hypoglycemic activity at cell screening bioassay.

中文翻译：

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来自三种Erythrina植物，E.variegata，E。crista-galli和E. arborescens的人造Erythrina生物碱。

从Erythrina variegata，E。crista - galli和E. arborescens（Fabaceae）中分离了十四种前所未有的人工Erythrina生物碱。这些生物碱的结构通过光谱分析确定。提出了它们的可能形式。在细胞筛选生物测定法中，所有分离出的化合物均未显示细胞毒性和降血糖活性。