A Thiazole Orange conjugated with folate derivative was synthesized in two steps. Firstly, folate was coupled with 1-(3-aminopropyl)-4-methylquinolinium bromide to afford folate-methylquinolinium bromide, which then reacted with benzothiazolium to obtain the title folate-conjugated compound. The compound was evaluated by 1H-NMR MS, TG/DTA and fluorescence spectroscopic methods. The title compound could selectively target folate receptor expressing tumors according to the in vivo fluorescence imaging preliminarily performed on nude mice with breast tumors.
与叶酸衍
生物共轭的
噻唑橙分两步合成。首先,将叶酸与 1-(3-
氨基丙基)-4-甲基
溴化
喹啉偶联,得到叶酸-甲基
溴化
喹啉,然后与
苯并噻唑反应,得到标题叶酸共轭化合物。该化合物通过 1H-NMR MS、TG/DTA 和荧光光谱方法进行了评估。根据对乳腺肿瘤裸鼠进行的体内
荧光成像初步研究,该化合物可选择性地靶向表达叶酸受体的肿瘤。