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Cytotoxic and antioxidant constituents from the leaves of Psidium guajava

机译:番石榴叶的细胞毒性和抗氧化剂成分

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Psidium guajava (Myrtaceae) is an evergreen shrub growing extensively throughout the tropical and subtropical areas. Four new compounds, guavinoside C, D, E and F (1-3, 10) were isolated from the leaves of Psidium guajava, along with six known ones (4-9). Their structures were elucidated by spectroscopic analysis. Compounds 1, 4 and 10 showed significant cytotoxic activities on HeLa, SGC-7901 and A549 cell lines, respectively. Compounds 1 and 4-10 showed antioxidant activities in DPPH, ABTS and FRAP assays, and five of them (1, 4-6, 10) exhibited stronger activities than that of vitamin C. (C) 2015 Elsevier Ltd. All rights reserved.
机译:番石榴(Myrtaceae)是一种常绿灌木,在热带和亚热带地区广泛生长。从番石榴叶中分离了四种新化合物,番石榴苷C,D,E和F(1-3、10),以及六种已知化合物(4-9)。通过光谱分析阐明了它们的结构。化合物1、4和10分别对HeLa,SGC-7901和A549细胞系显示出明显的细胞毒活性。化合物1和4-10在DPPH,ABTS和FRAP分析中显示抗氧化活性,其中五个(1、4-6、10)比维生素C具有更强的活性。(C)2015 Elsevier Ltd.保留所有权利。

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