Quadruplex-Interactive Agents as Telomerase Inhibitors: Synthesis of Porphyrins and Structure−Activity Relationship for the Inhibition of Telomerase
作者:Dong-Fang Shi、Richard T. Wheelhouse、Daekyu Sun、Laurence H. Hurley
DOI:10.1021/jm010246u
日期:2001.12.1
The cationic porphyrin 5,10,15,20-tetra-(N-methyl-4-pyridyl)porphyrin (TMPyP4) binds to quadruplex DNA and is thereby an inhibitor of human telomerase (Wheelhouse et al. J. Am. Chem. Soc. 1998, 120, 3261-3262). Herein the synthesis and telomerase-inhibiting activity of a wide range of analogues of TMPyP4 are reported, from which rules for a structure-activity relationship (SAR) have been discerned:
阳离子卟啉5,10,15,20-四-(N-甲基-4-吡啶基)卟啉(TMPyP4)与四链体DNA结合,因此是人端粒酶的抑制剂(Wheelhouse等,J.Am.Chem.Soc 1998,120,3261-3262)。本文报道了许多TMPyP4类似物的合成和端粒酶抑制活性,从中可以看出其结构-活性关系(SAR)的规则:(1)堆积相互作用对端粒酶抑制至关重要,(2)阳性带电荷的取代基很重要,但可以互换并与氢键基团结合,(3)取代仅在卟啉环的内消旋位置上是可容忍的,并且大部分取代基应与凹槽的宽度相匹配。他们推定说谎。