Two Unusual Flavanol Derivatives from Brainea insignis
Two Unusual Flavanol Derivatives from Brainea insignis
复制标题
DOI：
10.1002/cjoc.201200158
复制
发表时间：
2012-06
影响因子：
5.4
通讯作者：
Minghui Yang;L. Cai;Xiaoyu Shen;Mian Zhao;Tianpeng Yin;Z. Ding
中科院分区：
文献类型：
--
作者：
Minghui Yang;L. Cai;Xiaoyu Shen;Mian Zhao;Tianpeng Yin;Z. Ding
从脑树中分离到两个新的黄烷醇衍生物，它们通过CC键在C-4上携带苯基丙酸片段，命名为脑素B(1)和脑素C(2)。它们的结构经核磁共振和质谱鉴定。脑素B和C对DPPH（2,2-二苯基-1-苦味酰肼基）自由基的清除能力进行了测试，结果表明两种化合物均显示出较强的抗氧化活性。
Two new flavanol derivatives, bearing phenylpropionic acid moiety at C-4 through a CC bonding, named brainin B (1) and brainin C (2), were isolated from Brainea insignis. Their structures were elucidated by NMR and MS spectrometry. Brainins B and C were tested for their antioxidant properties in DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging, and both compounds displayed potent antioxidant activities.