Synthesis and biological applications of two novel fluorescent proteins-labeling probes
作者:Xiang-long Wu、Min Tian、Huai-zhen He、Wei Sun、Jian-li Li、Zhen Shi
DOI:10.1016/j.bmcl.2009.04.049
日期:2009.6
Twonovel chlorinated fluoresceins 2′,4′,5′,7′-tetrachloro-6-(5-carboxypentyl)-4,7-dichloro fluorescein succinimidyl ester (1G) and 2′,4′,5′,7′-tetrachloro-6-(3-carboxypropyl)-4,7-dichlorofluorescein succinimidyl ester (2G) were synthesized as fluorescent probes for labeling proteins. Structures of target compounds and intermediates were determined via IR, MS, 1H NMR and element analysis. The investigation
两种新型氯化荧光素2',4',5',7'-四氯-6-(5-羧基戊基)-4,7-二氯荧光素琥珀酰亚胺酯(1G)和2',4',5',7'-合成了四氯-6-(3-羧丙基)-4,7-二氯荧光素琥珀酰亚胺酯(2G)作为标记蛋白质的荧光探针。通过IR,MS,1 H NMR和元素分析确定目标化合物和中间体的结构。免疫荧光组织化学研究表明,它们具有较强的荧光性,较高的光稳定性和良好的生物相容性。
芳香族置換キサンテン色素
申请人:アプライド バイオシステムズ リミテッド ライアビリティー カンパニー
公开号:JP2015057478A
公开(公告)日:2015-03-26
PROBLEM TO BE SOLVED: To provide a useful compound used for independent detection of multiple spatially overlapping analytes in a mixture, for example, single-tube multiplex DNA probe assays, immunoassays, multicolor DNA sequencing methods and the like.SOLUTION: There is provided an aromatic-substituted xanthene dye represented by the following formula. (Yand Yeach independently represents hydroxyl, oxygen, iminium, a linking group or an amine; Yforms a cyclic amine together with Ror Yforms a cyclic amine together with R; R, R, Rand Reach independently represents H, F, Cl, a lower alkyl, a lower alkene, sulfonate, sulfone, iminium, amide, nitrile, a lower alkoxy, phenyl or a linking group; Rrepresents a single ring or a polycyclic aromatic or the like; Rrepresents H, F, alkyl, amino or the like; and Rrepresents acetylene, a lower alkyl or the like.)
Synthesis of chlorinated fluoresceins for labeling proteins
作者:Min Tian、Xiang-Long Wu、Bin Zhang、Jian-Li Li、Zhen Shi
DOI:10.1016/j.bmcl.2008.01.114
日期:2008.3
Two novel chlorinated fluoresceins 4,7,2',7'-tetrachloro-6-(5-carboxypentyl)fluorescein (8a) and 4,7,4',5'-tetra-chloro-6-(5-carboxypentyl)fluorescein (8b) were synthesized as fluorescent probes for labeling proteins. These two fluoresceins contain 6-aminohexanoic acid as spacer linker to minimize the fluorescence quenching of the fluorescein molecules by the proteins to be labeled.
improved at room temperature with natural lightirradiation. After 90 min of catalytic reaction, the sulfur content in the model fuel decreased from (800 ppm) to 20 ppm. Catalytic activity studies revealed that the central metal ions of phthalocyanine structures presented a significant influence in the catalytic activity for the degradation of DBT. Additionally, mechanistic studies revealed that the