文献类型： 外文期刊
第一作者： Geng, Hui-Chun
作者： Geng, Hui-Chun;Wang, Xue-Song;Fang, Hai-Xian;Chen, Xing-Lian;Wang, Yun-Mei;Liao, Yong-Jian;Qiu, Shi-Yu;Zhou, Min
作者机构：
关键词： Lepidium meyenii; Thiohydantoins; Racemic mixtures; Maca; Cytotoxicity
期刊名称：PHYTOCHEMISTRY LETTERS （ 影响因子：1.873； 五年影响因子：1.875 ）
ISSN： 1874-3900
年卷期： 2022 年 51 卷
页码：
收录情况： SCI
摘要： Three new thiohydantoins with a 2-thioxoimidazolidin-4-one nucleus, named macathiohydantoins P-R (1-3), along with one known analog (4), were isolated from the roots of Lepidium meyenii. Their structures were elucidated by means of analysis of extensive spectroscopic data, including D-1 NMR, D-2 NMR and HRESIMS. The thiohydantoins (1-4) were isolated as racemic mixtures, which were further separated by chiral semi-preparative HPLC to afford the corresponding enantiomers. Their absolute configuration of C-5 was assigned by comparison of optical rotation values with those reported in the literature. All thiohydantoin derivatives were evaluated for their cytotoxicities against five human cancer cell lines.
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