申请人:Ying Laiqiang
公开号:US10513610B1
公开(公告)日:2019-12-24
The invention describes the preparation and use of sulfonated 4,7-dichlororhodamine dyes having the structure:
Wherein R1, R4, R5 and R8 are independently hydrogen, —SO3Y where Y is H or a counterion, C1-C6 alkyl, or C1-C6 alkoxy, where each alkyl or alkoxy is optionally further substituted by a carboxylic acid, a salt of carboxylic acid, or a carboxylic acid ester of a C1-C6 alcohol; R2 and R3 are independently hydrogen, C1-C6 alkyl, C1-C6 carboxyalkyl, C1-C6 sulfoalkyl, a salt of C1-C6 carboxyalkyl, or a salt of C1-C6 sulfoalkyl; or R2 in combination with R1, or R3 in combination with R4, or both, form a 5- or 6-membered ring that is saturated or unsaturated, and is optionally substituted by one or more C1-C6 alkyls, or —CH2SO3Y moieties; R6 and R7 are independently hydrogen, C1-C6 alkyl, C1-C6 carboxyalkyl, C1-C6 sulfoalkyl, a salt of C1-C6 carboxyalkyl, or a salt of C1-C6 sulfoalkyl; or R6 in combination with R5, or R7 in combination with R8, or both, form a 5- or 6-membered ring that is saturated or unsaturated, and is optionally substituted by one or more C1-C6 alkyls, or —CH2SO3Y moieties; R9 is carboxylate or sulfonate; R10 and R11 are independently hydrogen, Cl, or Rx, where Rx is a reactive group. In one aspect, the invention includes reagents labeled with the sulfonated 4,7-dichlororhodamine dye compounds, including an amino acid, peptide, protein, antibody, polysaccharide, nucleotide, nucleic acid, hapten, drug, lipid, polymer, cell, bacterium, yeast, or virus. In an additional aspect, the invention includes methods utilizing such dye compounds and reagents including protein labeling, dideoxy polynucleotide sequencing and fragment analysis methods.
本发明描述了制备和使用具有以下结构的磺化4,7-二
氯罗丹明染料的方法:
其中,R1、R4、R5和R8独立地为氢、—SO3Y,其中Y为H或计数离子、C1-C6烷基或C1-C6烷氧基,其中每个烷基或烷氧基还可以进一步取代为
羧酸、
羧酸盐或C1-C6醇的
羧酸酯;R2和R3独立地为氢、C1-C6烷基、C1-C6羧基烷基、C1-C6磺基烷基、C1-C6羧基烷基盐或C1-C6磺基烷基盐;或R2与R1组合,或R3与R4组合,或两者都组合,形成一个饱和或不饱和的5-或6元环,可选地取代一个或多个C1-C6烷基或—CH2SO3Y基团;R6和R7独立地为氢、C1-C6烷基、C1-C6羧基烷基、C1-C6磺基烷基、C1-C6羧基烷基盐或C1-C6磺基烷基盐;或R6与R5组合,或R7与R8组合,或两者都组合,形成一个饱和或不饱和的5-或6元环,可选地取代一个或多个C1-C6烷基或—CH2SO3Y基团;R9为
羧酸盐或
磺酸盐;R10和R11独立地为氢、Cl或Rx,其中Rx为反应性基团。
在一方面,本发明包括用磺化4,7-二
氯罗丹明染料化合物标记的试剂,包括
氨基酸、肽、蛋白质、
抗体、
多糖、核苷酸、核酸、半抗原、药物、脂质、聚合物、细胞、细菌、酵母或病毒。在另一方面,本发明包括利用这种
染料化合物和试剂的方法,包括蛋白质标记、二脱氧多核苷酸测序和片段分析方法。