Angular Furoquinolinones, Psoralen Analogs: Novel Antiproliferative Agents for Skin Diseases. Synthesis, Biological Activity, Mechanism of Action, and Computer-Aided Studies
作者:Paolo Rodighiero、Adriano Guiotto、Adriana Chilin、Franco Bordin、Francarosa Baccichetti、Francesco Carlassare、Daniela Vedaldi、Sergio Caffieri、A. Pozzan、Francesco Dall'Acqua
DOI:10.1021/jm950585l
日期:1996.3.15
With the aim of obtaining new potential photochemotherapeutic agents, having increased antiproliferative activity and decreased undesired effects, we have prepared some new furoquinolinones. Two of them have been studied in detail: 1,4,6,8-tetramethyl-2H-furo[2,3-h]-quinolin-2-one (8), and 4,6,8,9-tetramethyl-2H-furo[2,3-h]quinolin-2-one (10). These compounds form a molecular complex with DNA, undergoing
为了获得新的潜在的光化学治疗剂,具有增加的抗增殖活性和减少的不良作用,我们制备了一些新的呋喃喹啉酮。已对其中两个进行了详细的研究:1,4,6,8-四甲基-2H-呋喃[2,3-h]-喹啉-2-酮(8)和4,6,8,9-四甲基- 2H-呋喃[2,3-h]喹啉-2-一(10)。这些化合物与DNA形成分子复合物,在双链大分子内部进行插入,如线性流二色性所示。通过随后用UV-A光照射,络合的配体与大分子光结合,仅形成具有胸腺嘧啶的顺式-syn构型的单环加合物。为了评估由位置1的8中的氮原子引起的电子效应,已对4,6,4'-三甲基Angelicin(TMA)和8进行了半经验计算。所得结果并未明确区分两个分子,在此近似水平下,这两个分子显示了与8、3,4-和4'的3,4-和8,9-烯烃键同时发生光反应的可能性, TMA的5'键。在插层8的较低能构象中,呋喃环转向多核苷酸的小沟,从而有利于该环与胸腺嘧啶的