Isolation, semi-synthesis, free-radicals scavenging, and advanced glycation end products formation inhibitory constituents from<i>Parmotrema tinctorum</i>
作者:P. Pavan Kumar、Bandi Siva、Ajay Anand、Ashok K Tiwari、C. Vekata Rao、Joel Boustie、K. Suresh Babu
DOI:10.1080/10286020.2019.1628024
日期:2020.10.2
lfonic acid) (ABTS)) scavenging and advanced glycation end products (AGEs) formation inhibitory activities. Amongst tested derivatives, 1a, 1d, 1e, 2a, and 5a showed strong ABTS scavenging potentials comparable to Trolox. In addition, these derivatives also manifested moderate AGEs formation inhibitory activities.
从地衣丙酮提取物的生物测定引导的分离Parmotrema tinctorum(Delise前NYL。)黑尔导致的六个主要酚类组分(隔离1-6)。使用NMR和质谱技术建立化合物结构。此外,为了在这些支架上开发文库,制备了一系列半合成衍生物(1a-1f,2a-2b,3a,5a),并研究了它们的自由基(2,2-二苯基-1-picylhydrazyl和2 ,2'-叠氮基双(3-乙基苯并噻唑啉-6-磺酸)(ABTS))清除和高级糖基化终产物(AGEs)形成抑制活性。在测试的衍生物中,1a,1d,1e,2a和5a具有与Trolox相当的ABTS清除潜力。另外,这些衍生物还表现出中等的AGEs形成抑制活性。