Physiological Activity of Chinese Lichen (Gyrophora esculenta) Component, Methyl 2,4-Dihydroxy-6-methylbenzoate and the Related Compounds
作者:Shuhsien Wu、Zhendong Zhao、Yoshiharu Okada、Yoshiyuki Watanabe、Toshiyuki Takahata、Toshio Inoue、Eiji Otsubo、Jing Wang、Yanju Lu、Masato Nomura
DOI:10.14233/ajchem.2014.15485
日期:——
It was confirmed that there was a higher expression of antioxidant potential in methyl 2,4-dihydroxy-6-methylbenzoate (orsellinic acid methyl ester) (2), which was isolated from methanol extract oil of Chinese lichen Gyrophora esculenta rather than from commercialized ascorbic acid. Taking this into account, 4 types of compounds-(4-7) which are known to be related to compound (2)-have been synthesized by using 2,4-dihydroxy benzoic acid (3) as starting material. After that, some physiological activity tests on these compounds have been conducted in the following aspects: antioxidant potential, cytotoxicity, cytokine suppressant effect and histamine liberation inhibition and the effects have been evaluated, respectively. The result shows that (2) and methyl 2,4-dihydroxybenzoate (4) showed high radical expression in both antioxidant potential and histamine liberation inhibition. It was also found that none of these compounds expresses cytotoxicity.
确认了甲基2,4-二羟基-6-甲基苯酸酯(orcellinic acid methyl ester)(2)在中华地衣Gyrophora esculenta的甲醇提取油中具有更高的抗氧化潜力,而不是来自商业化的抗坏血酸。考虑到这一点,已经合成了4种与化合物(2)相关的化合物(4-7),以2,4-二羟基苯甲酸(3)作为起始材料。之后,对这些化合物进行了一些生理活性测试,涉及以下方面:抗氧化潜力、细胞毒性、细胞因子抑制效应和组胺释放抑制,并分别进行了评估。结果显示,(2)和甲基2,4-二羟基苯酸酯(4)在抗氧化潜力和组胺释放抑制方面均表现出了高的自由基表达。此外,发现这些化合物均未表现出细胞毒性。