Huisgen的叠氮化物-炔烃环加成反应用于合成一系列1 H -1,2,3-三唑系尿嘧啶-二茂铁基查耳酮共轭物,旨在评估其对人白血病的体外抗增殖功效(CCRF-CEM)和人乳腺癌细胞(MDA-MB-468)。细胞毒性评估研究确定了许多合成的缀合物,可在72小时后将白血病癌细胞的增殖抑制约70%。当与CCRF-CEM癌细胞相比时,发现选择的合成缀合物对正常肾细胞系(LLC-PK1)的细胞毒性明显较小。 1 H -1,2,3-三唑系尿嘧啶-二茂铁基查尔酮偶联物的合成及其体外抗增殖功效对人白血病(CCRF-CEM)和人乳腺癌(MDA-MB-468)细胞系的影响。
Effect of N3 Modifications on the Affinity of Spin Label ç for Abasic Sites in Duplex DNA
作者:Sandip A. Shelke、Snorri Th. Sigurdsson
DOI:10.1002/cbic.201100728
日期:2012.3.19
Spin‐label ligands: N3 derivatives of the spin label ç were synthesized and used for noncovalent site‐directed spin labeling of duplex DNAs containing abasicsites. EPR spectra showed that derivatives containing basic functional groups had higher binding affinity and solubility. These are promising candidates for distance measurement in nucleic acids by pulsed EPR spectroscopy.