The intercalation of 6-chloro-2-substituted-9-[[3-(dimethylamino)propyl]amino]acridines with DNA
作者:S. E. Kitchen、Yuehhwa Wang、A. L. Baumstark、W. D. Wilson、David W. Boykin
DOI:10.1021/jm00145a016
日期:1985.7
A series of 6-chloro-2-substituted-9-[[3-(dimethylamino)propyl]amino]acridines has been prepared. The binding affinities and the unwinding angles for the acridine derivatives, relative to ethidium, were determined from viscometric titrations with ccs-DNA. The binding affinities were the same, within experimental error, ca. 2.0 X 10(-5). Similarly, with the exception of 11, the unwinding angles were
已经制备了一系列6-氯-2-取代的-9-[[[3-(二甲基氨基)丙基]氨基] ac啶。with啶衍生物相对于乙锭的结合亲和力和解旋角通过使用ccs-DNA的粘度滴定法确定。在实验误差范围内,结合亲和力是相同的。2.0 X 10(-5)。类似地,除了11°以外,退绕角接近17度。对于11,展开角度(12度)小于其他导数。表观结合常数对取代基作用的一般不敏感性归因于形式电荷对环的掩蔽作用。据信11的较小的退绕角是由于其相对不对称而引起的,从而在插入时产生“楔形”效应。