Two new xanthones, a new lignin, and twenty phenolic compounds from Smilax china and their NO production inhibitory activities
作者:Xiang-Wei Zheng、Lei Zhang、Wei-Yue Zhang、Yan Zhang、Jian-Ying Wang、Bao-Cheng Liu、Xiao-Juan Hu、Yan-Long Hong、Yong-Qing Yang
DOI:10.1080/10286020.2019.1598395
日期:2020.6.2
Two new xanthones smilone A (1), smilone B (2), and a new lignin smilgnin A (3) were isolated from the rhizomes of Smilax china L., together with three known xanthones (4-6), four lignins (7-10), two flavones (11, 12), two stilbenoids (13, 14), and ten organic phenoloids (15-24). Of them, compounds 4-6 were isolated from the genus Smilax for the first time. The structures of 1-24 were elucidated by
从S草的根茎中分离出两个新的黄原酮smilone A(1),smilone B(2)和一个新的木质素smilgnin A(3),以及三个已知的黄原酮(4-6),四个木质素(7)。 -10),两个黄酮(11、12),两个二苯乙烯类化合物(13、14)和十个有机酚类(15-24)。其中,化合物4-6首次从Smilax属中分离出来。通过光谱数据的广泛分析阐明了1-24的结构,并与文献进行了比较。评价所有化合物对RAW264.7巨噬细胞中LPS诱导的NO产生的抑制作用。其中,化合物24对NO产生具有显着的抑制活性(IC50 = 1.26 µM),而化合物3、6和7在浓度为50μM时表现出较弱的活性。