申请人:Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e. V.
公开号:US20220064452A1
公开(公告)日:2022-03-03
Disclosed are photoactivable fluorescent dye compounds of formula I:
wherein: n=0, 1, 2, 3; X is selected from O, CRR′, SiRR′ and GeRR′, where R and R′ represent independently alkyl, cycloalkyl, alkenyl, alkynyl or aryl; Y is H, SO
3
H or SO
3
M, with M being a positively charged counterion, in particular selected from NH
4
+
and cations of organic ammonium compounds; R
1
is H, CO
2
H, C(O)NH-linker-CO
2
H, C(O)O-ligand, C(O)NH-ligand or C(O)NH-linker-ligand; R
2
may represent H, unsubstituted or substituted alkyl (including cycloalkyl); R
3
and R
4
may represent independently H or F; R
5
is H, Me, CO
2
H, C(O)NH-linker-CO
2
H, C(O)O-ligand, C(O)NH-ligand or C(O)NH-linker-ligand; wherein the ligand moiety at each occurrence represents a reactive group or tag, capable to form a covalent or non-covalent bond or molecular complex with a target chemical entity or substance. Methods of using the compounds in imaging of fixed and living cells are also disclosed.
本发明涉及公式I的光活性荧光
染料化合物:
其中:n = 0、1、2、3;X选择自O、CRR′、SiRR′和GeRR′,其中R和R′独立地代表烷基、
环烷基、
烯基、炔基或芳基;Y为H、SO3H或SO3M,其中M为正电荷的对离子,特别是选择自NH4+和有机
铵化合物的阳离子;R1为H、CO2H、C(O)NH-连接器-CO2H、C(O)O-
配体、C(O)NH-
配体或C(O)NH-连接器-
配体;R2可以表示为H、未取代或取代烷基(包括
环烷基);R3和R4可以独立地表示H或F;R5为H、Me、CO2H、C(O)NH-连接器-CO2H、C(O)O-
配体、C(O)NH-
配体或C(O)NH-连接器-
配体;其中每次出现的
配体基团表示反应性基团或标记,能够与目标
化学实体或物质形成共价或非共价键或分子复合物。还公开了使用该化合物在固定和活细胞成像中的方法。