作者:David W. Boykin、Arvind Kumar、Jaroslaw Spychala、Min Zhou、Richard J. Lombardy、W. David Wilson、Christine C. Dykstra、Susan K. Jones、James E. Hall
DOI:10.1021/jm00006a009
日期:1995.3
Seven dicationic 2,5-diarylfurans have been synthesized, and their interactions with poly(dA-dT) and the duplex oligomer d(CGCCAATTCGCG)2 were evaluated by Tm measurements. The inhibition of topoisomerase II isolated from Giardia lamblia, the inhibition of growth of G. lamblia in cell culture by these furans, and the effectiveness of these compounds against Pneumocystis carinii in the immunosuppressed
已合成了七种2,5-二芳基呋喃基呋喃,并通过Tm测量评估了它们与聚(dA-dT)和双链低聚物d(CGCCAATTCGCG)2的相互作用。评估了从这些贾第鞭毛虫中分离出的贾第鞭毛虫的拓扑异构酶II,在细胞培养中对贾第鞭毛虫的生长的抑制作用以及在免疫抑制的大鼠模型中这些化合物对卡氏肺孢子虫的有效性。对于二甲呋喃,观察到了对聚(dA-dT)和低聚物的强结合亲和力,并且相互作用强度与化合物的生物活性直接相关。X-射线结构的dication型derivative衍生物2,5-双(4-胍基苯基)呋喃(1),用低聚物证实了这些化合物与AATT次要凹槽结合位点和次要凹槽底部的AT碱基对的氢键的紧密配合。在细胞培养中,较强的DNA结合分子是拓扑异构酶II和G. lamblia的最有效抑制剂,DNA相互作用和拓扑异构酶II抑制均与这些化合物对G. lamblia的生物学活性相关。化合物1对卡氏疟原虫最有效,在