Structure–activity relationships for naturally occurring coumarins as β-secretase inhibitor
作者:Shinsuke Marumoto、Mitsuo Miyazawa
DOI:10.1016/j.bmc.2011.12.002
日期:2012.1
The present study was demonstrated to evaluate the effects of naturally occurring coumarins (NOCs) including simple coumarins, furanocoumarins, and pyranocoumarins on the inhibition of β-secretase (BACE1) activity. Of 41 NOCs examined, some furanocoumarins inhibited BACE1 activity, but simple coumarins and pyranocoumarins did not affect. The most potent inhibitor was 5-geranyloxy-8-methoxypsoralen
本研究证明可以评估天然香豆素(NOC)(包括简单香豆素,呋喃香豆素和吡喃香豆素)对β-分泌酶(BACE1)活性的抑制作用。在41个NOC中,一些呋喃香豆素抑制了BACE1的活性,但简单的香豆素和吡喃香豆素没有影响。最有效的抑制剂是5-香叶基氧基-8-甲氧基补骨脂素(31),IC 50值为9.9μM 。其他呋喃香豆素衍生物,例如8-香叶基氧基-5-甲氧基补骨脂素(35),8-香叶基氧基补骨脂蛋白(24)和佛手柑(18)抑制BACE1活性,IC 50值<25.0μM。通过狄克逊曲线和Cornish-鲍登地块抑制机制的分析表明,化合物18,31和35混合型抑制剂。香豆素24抑制BACE1的动力学是非竞争性抑制剂。