作者:Aleksey A Vasilev、Meglena I Kandinska、Stanimir S Stoyanov、Stanislava B Yordanova、David Sucunza、Juan J Vaquero、Obis D Castaño、Stanislav Baluschev、Silvia E Angelova
DOI:10.3762/bjoc.13.283
日期:——
monomethine cyanine dyes 5a-d, which are analogues of the commercial dsDNA fluorescence binder thiazole orange (TO), have been synthesized. The synthesis was achieved by using a simple, efficient and environmetally benign synthetic procedure to obtain these cationic dyes in good to excellent yields. Interactions of the new derivatives of TO with dsDNA have been investigated by absorption and fluorescence
合成了新型的不对称单体单次甲基花菁染料5a-d,它们是商业dsDNA荧光粘合剂噻唑橙(TO)的类似物。通过使用简单,有效且环境友好的合成程序以良好至极佳的收率获得这些阳离子染料,从而实现了合成。通过吸收和荧光光谱研究了TO的新衍生物与dsDNA的相互作用。目标化合物在UV-vis光谱中最长的波长吸收带在509-519 nm范围内,其特征在于摩尔吸收率高(63000-91480 L·mol-1·cm-1)。该系列中所有研究的染料都不是荧光的,或者它们的荧光很低,但是它们与dsDNA结合后变成强荧光。