New NIR dyes based on quinolizino[1,9-hi]phenoxazin-6-iminium chlorides: synthesis, photophysics and antifungal activity
作者:B. Rama Raju、Maria Inês P.S. Leitão、Maria João Sousa、Paulo J.G. Coutinho、M. Sameiro T. Gonçalves
DOI:10.1016/j.dyepig.2019.107870
日期:2020.2
9-hi]phenoxazinium chlorides were evaluated against the yeast Saccharomyces cerevisiae in a broth microdilution assay. It was found that their antifungal activity depended on the substituent at 14-amino position in benzo[a]quinolizino[1,9-hi]phenoxazin-14(5H)-iminium chlorides, and also on the addition of a fused benzene ring, which occurs in naphtho[2,3-a]quinolizino[1,9-hi]phenoxazin-14(5H)-iminium chloride. The
制备了一系列新的基于聚吲哚和萘-1-胺衍生物或蒽-1-胺的喹啉并[1,9- hi ]苯恶嗪鎓染料。这些喹啉并[1,9- hi ]苯恶嗪氯化物的N-末端含有芳族或脂族取代基,以及诸如氯,羟基和羧基的官能团。在酸性和碱性条件下,在无水乙醇和水性介质中研究了这些化合物的光物理行为。这些荧光团分别显示最大675 nm和712 nm的最大吸收和发射,可作为生物学测定中的替代传感工具。 在肉汤微量稀释试验中,针对酵母酿酒酵母评估了所有喹喔啉[1,9- hi ]苯氧嗪鎓氯化物。发现它们的抗真菌活性取决于苯并[ a ]喹啉并[1,9 - hi ]苯恶嗪-14(5 H)-亚胺氯化物中14-氨基位置的取代基,还取决于稠合苯环的添加。发生在萘并[2,3- a ]喹啉并[ 1,9 - hi ]苯恶嗪-14(5 H)-亚氯化亚胺中。苯并[ a ]喹啉并[1,9 - hi ]苯恶嗪-14(5 H)-在杂环核的14-氨基位置具有3-氯丙基取代基的氯化亚胺。