towards GC-DNA base pairs over AT-DNA, which included both binding affinity and a strong fluorescence response. CD titrations showed aggregation along the polynucleotide with well-defined supramolecular chirality. The single dipyridinium-bridged dimer showed intercalation at low dye-DNA/RNA ratios. All new cyanine dyes showed potent micromolar antiproliferative activity against cancer cell lines, making
合成了具有羟丙基官能团的商业不对称单次甲基
花青染料噻唑橙 (TO) 和
噻唑橙同二聚体 (TOTO) 的新类似物,并研究了它们在不同核酸存在下的特性。新化合物对所有检测的 DNA ds-多核苷酸和 poly rA-poly rU 都显示出很强的、微摩尔和亚微摩尔的亲和力。研究的化合物显示出对 GC-DNA 碱基对的选择性超过 AT-DNA,包括结合亲和力和强荧光响应。CD 滴定显示沿多核苷酸聚集,具有明确的超分子手性。单个双
吡啶桥二聚体在低
染料-DNA/RNA 比率下表现出嵌入。所有新的
花青染料都对癌
细胞系显示出有效的微摩尔级抗增殖活性,