摘要
应用正相硅胶、凝胶SephadexLH20柱色谱和反相HPLC等方法,从多管藻(Polysiphoniaurceolata)中分离得到6个溴酚类化合物,通过IR、MS、1D和2DNMR等波谱技术分析鉴定,发现一个有明显的PTP1B抑制活性(IC50=4·9μg/mL)的新化合物:3-溴-4-[3-溴-4,5-二羟基苯基]甲基-5-羟甲基-1,2-二苯酚(1)。另5个已知化合物分别为3-溴-4,5-二羟基苄基乙基醚(2)、3-溴-4,5-二羟基苯甲醇(3)、3-溴-4,5-二羟基苯甲醛(4)、3,5-二溴-4-羟基苯甲醛(5)、3,5-二溴-4-羟基苯甲醇(6)。
Compound 1, structurally as 3-bromo-4- [ 3-bromo-4,5- dihydroxyphenyl ] methyl-5- ( hydroxymethyl ) - 1,2- benzenediol, together with five known compounds, 3-bromo-4,5-dihydroxy-α-ethoxy-toluol(2) , 3-bromo-4,5- dihydroxybenzyl alcohol( 3 ), 3- bromo-4,5 - dihydroxybenzaldehyde ( 4 ), 3,5- dibromo-4- hydroxybenzyl alcohol ( 5 ) and 3,5- dibromo-4-hydroxybenzaldehyde (6), were isolated from the red alga Polysiphonia urceolata. Their structures were elucidated by chemical and spectroscopic methods including 2D NMR techniques. Compound 1 showed potent inhibition against PTP1B enzyme with IC50 = 4.9μg/mL.
出处
《化学通报》
CAS
CSCD
北大核心
2006年第9期708-710,共3页
Chemistry
基金
国家"863"高技术发展计划(2004AA625030
2001AA620503)
中国科学院知识创新工程(KZCX3-SW-215)
烟台师范学院(20062901)资助项目
关键词
多管
溴酚
PTP1B抑制剂
红藻
Bromophenol, PTP1B inhibitor, Polysiphonia urceolata, Red alga