Some chalcones have been designed and synthesized using Claisen-Schmidt reactions as inhibitors of the ferredoxin and ferredoxin-NADP+ reductase interaction to pursue a new selective antimalaria agent. The synthesized compounds exhibited inhibition interactions between PfFd-PfFNR in the range of 10.94%–50%. The three strongest inhibition activities were shown by (E)-1-(4-aminophenyl)-3-(4-methoxyphenyl)prop-2-en-1-one (50%), (E)-1-(4-aminophenyl)-3-(2,4-dimethoxyphenyl)prop-2-en-1-one (38.16%), and (E)-1-(4-aminophenyl)-3-(2,3-dimethoxyphenyl)prop-2-en-1-one (31.58%). From the docking experiments we established that the amino group of the methoxyamino chlacone derivatives plays an important role in the inhibition activity by electrostatic interaction through salt bridges and that it forms more stable and better affinity complexes with FNR than with Fd.
                                    通过Claisen-Schmidt反应设计并合成了一些查耳
酮类化合物,作为
铁氧化还原蛋白和
铁氧化还原蛋白-
NADP+还原酶相互作用的
抑制剂,以追求一种新的选择性
抗疟药物。合成的化合物表现出对PfFd-PfFNR相互作用的抑制作用,抑制率在10.94%至50%之间。具有最强抑制活性的三种化合物分别为:(E)-1-(4-
氨基苯基)-3-(4-
甲氧基苯基)丙-2-烯-1-酮(50%),(E)-1-(4-
氨基苯基)-3-(2,4-二
甲氧基苯基)丙-2-烯-1-酮(38.16%),以及(E)-1-(4-
氨基苯基)-3-(2,3-二
甲氧基苯基)丙-2-烯-1-酮(31.58%)。从对接实验中我们确定,甲氧
氨基
查耳酮衍
生物的
氨基通过盐桥的静电相互作用在抑制活性中起着重要作用,并且它与FNR形成的复合物比与Fd形成的复合物更稳定、亲和力更好。