Macathiohydantoins P-R, three new thiohydantoin derivatives from Maca (Lepidium meyenii)

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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