作者:Xavier J. Salom-Roig、Jean Martínez、M. Isabel Burguete、Francisco Galindo、Santiago V. Luis、Miguel A. Miranda、María C. Morant-Miñana、Julia Pérez-Prieto
DOI:10.1016/j.tetlet.2009.06.047
日期:2009.8
protected amino acids (Trp, Tyr, Phe, and Lys) with various diamino spacers, as quenchers of the triplet excited state of tiaprofenic acid (and its methyl ester), has been investigated. A series of quenching constants have been determined, which depend on the nature of the quencher and on the stereochemistry of the excited drug. A significant degree of stereodifferentiation has been found for the peptidomimetic
已经研究了通过将不同的受保护氨基酸(Trp,Tyr,Phe和Lys)与各种二氨基间隔基连接起来合成的6种伪肽模型的行为,这些肽作为噻洛芬酸(及其甲酯)的三重激发态的猝灭剂。已经确定了一系列淬灭常数,这取决于淬灭剂的性质和受激发药物的立体化学。对于通过哌嗪桥连接的Phe和Tyr合成的拟肽,已经发现了很大程度的立体分化。获得的结果支持了激光闪光光解(LFP)作为研究光激发药物与蛋白质结合位点简单模型之间相互作用的工具的实用性。