申请人:EUROPÄISCHES LABORATORIUM FÜR
MOLEKULARBIOLOGIE (EMBL)
公开号:EP1595872A1
公开(公告)日:2005-11-16
The invention refers to compounds according to formula I
wherein
R1 is independently in position 2', 3', or both of the A ring of the compound and is hydroxyl, linear or branched -O-alkyl with 1-12, preferably 3-8, more preferably 4 carbon atoms, -O-carboxylic acid with 1-12, preferably 3-8, more preferably 4 carbon atoms, -O-aromatic compound, linear or branched -O-(CH2)m-CH(NH2)-COOH with m = 1-6, preferably m= 2-4, or any combination thereof,
R2 and R3 independently are F, Cl, Br, I, H, CN, -CH=CH-alkyl, -C≡C-alkyl, or an aromatic compound,
X is O or S,
R4 is in position 8', 10', or 11' of the D ring of the compound and is H or (CH2)n-CH3 with n = 0-6, COOH, CN, or halogen
R5 and R6 independently are ethyl-, methyl-, H, or -(CH2)3 connected to position 8 or 10 of the D ring of the fluorescent dye,
except compounds according to formula I wherein R1 is 2' or 3' - hydroxyl or 2' -O-(CH2)5-COOH, R2, R3, and R4 are H, X is O, and R5 and R6 are ethyl.
The invention further refers to the use of the compounds according to formula I as environmentally sensitive fluorescent dyes. They particularly lend themselves to measure the binding of ligands to lipid binding sites of proteins. They can also be used in an assay for performing this measurement.
该发明涉及到符合以下式I的化合物,其中R1独立地位于化合物的A环的2'、3'或两者位置,且为羟基、线性或支链的-O-烷基(具有1-12,优选3-8,更优选4个碳原子)、-O-羧酸(具有1-12,优选3-8,更优选4个碳原子)、-O-芳香化合物、线性或支链的-O-(CH2)m-CH(NH2)-COOH(其中m = 1-6,优选m= 2-4),或者以上任意组合;R2和R3独立地为F、Cl、Br、I、H、CN、-CH=CH-烷基、-C≡C-烷基,或芳香化合物;X为O或S;R4位于化合物的D环的8'、10'或11'位置,为H或(CH2)n-CH3(其中n = 0-6)、COOH、CN或卤素;R5和R6独立地为乙基基、甲基基、H,或-(CH2)3连接到荧光染料的D环的8或10位置,除了符合式I的化合物,其中R1为2'或3'-羟基或2'-O-(CH2)5-COOH,R2、R3和R4为H,X为O,R5和R6为乙基。该发明还涉及将符合式I的化合物用作对环境敏感的荧光染料。它们特别适用于测量配体与蛋白质的脂质结合位点的结合。它们也可用于进行此测量的分析。