摘要:
Novel squarate dyes are described, and adducts of these dyes with biologically significant chemical species such as nucleosides or nucleotides. The adducts have useful properties for fluorescent nucleic acid sequencing methods.
摘要:
Disclosed are nitro-substituted squaraine reporter dyes and methods using such dyes for detecting nitroreductase enzyme activity and nitroreductase gene expression in cellular assays. The dyes are of the structure: in which Z1 and Z2 independently represent a phenyl or a naphthyl ring system; X and Y are selected from oxygen, sulphur, —CH═CH— and the group: R1 and R2 are selected from C1-C4 alkyl, —(CH2)n—P, —{(CH2)2—O}p—R6 and group W; where P is selected from COOR7, SO3− and OH, W is mono- or di-substituted nitrobenzyl, R6 is methyl or ethyl, R7 is selected from H, C1-C4 alkyl and CH2OC(O)R8, where R8 is methyl, or t-butyl, n is an integer from 1 to 10, and p is an integer from 1 to 3; R3 and R4 are selected from hydrogen, NO2, halogen, SO3−, C1-C4 alkoxy and —(CH2)m—COOR7; where R7 is hereinbefore defined and m is 0 or an integer from 1 to 5; R5 is C1-C6 alkyl optionally substituted with COOR7, SO3−, or OH; where R7 is hereinbefore defined; and at least one of groups R1, R2, R3 and R4 comprises at least one NO2 group. Also provided are methods for screening for a test agent whose effect upon nitroreductase enzyme activity and nitroreductase gene expression is to be determined.
摘要:
This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3′-dimethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.
摘要:
This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3′-dymethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.
摘要:
This invention relates to the functionalized cyanine dyes and more particularly, to the synthesis of chiral 3-substituted 2,3′-dimethyl-3H-indole and its derivatives as intermediates for preparation of cyanine dyes, to methods of preparing these dyes and the dyes so prepared.
摘要:
Disclosed are new acridone dye derivatives having characteristic fluorescence lifetimes. Also disclosed are methods for labelling target biological materials employing the acridone dyes and use of the labelled materials in biological assays. The acridone derivatives have the following structure: in which Z1 and Z2 represent the atoms necessary to complete one ring, two fused ring, or three fused ring aromatic or heteroaromatic systems, each ring having five or six atoms selected from carbon atoms and optionally no more than two atoms selected from oxygen, nitrogen and sulphur; R2, R3, R4 and R5 are selected from hydrogen, halogen, amide, hydroxyl, cyano, nitro, mono- or di-nitro-substituted benzyl, amino, mono- or di-C1-C4 alkyl-substituted amino, sulphydryl, carbonyl, carboxyl, C1-C6 alkoxy, acrylate, vinyl, styryl, aryl, heteroaryl, C1-C20 alkyl, aralkyl, sulphonate, sulphonic acid, quaternary ammonium, the group -E-F and the group —(CH2—)nY; R1 is selected from hydrogen, mono- or di-nitro-substituted benzyl, C1-C20 alkyl, aralkyl, the group -E-F and the group —(CH2—)nY; where E is a spacer group, F is a target bonding group; Y is selected from sulphonate, sulphate, phosphonate, phosphate, quaternary ammonium and carboxyl; and n is an integer from 1 to 6. The invention also relates to a set of different fluorescent acridone dye derivatives, each dye having a different fluorescence lifetime, the set of dyes being particularly useful for multiparameter analysis.
摘要:
Disclosed are nitro-substituted squaraine reporter dyes and methods using such dyes for detecting nitroreductase enzyme activity and nitroreductase gene expression in cellular assays. The dyes are of the structure: in which Z1 and Z2 independently represent a phenyl or a naphthyl ring system; X and Y are selected from oxygen, sulphur, —CH═CH— and the group: R1 and R2 are selected from C1-C4 alkyl, —(CH2)n—P, —{(CH2)2—O}p—R6 and group W; where P is selected from COOR7, SO3− and OH, W is mono- or di-substituted nitrobenzyl, R6 is methyl or ethyl, R7 is selected from H, C1-C4 alkyl and CH2OC(O)R8, where R8 is methyl, or t-butyl, n is an integer from 1 to 10, and p is an integer from 1 to 3; R3 and R4 are selected from hydrogen, NO2, halogen, SO3−, C1-C4 alkoxy and —(CH2)m—COOR7; where R7 is hereinbefore defined and m is 0 or an integer from 1 to 5; R5 is C1-C6 alkyl optionally substituted with COOR7, SO3−, or OH; where R7 is hereinbefore defined; and at least one of groups R1, R2, R3 and R4 comprises at least one NO2 group. Also provided are methods for screening for a test agent whose effect upon nitroreductase enzyme activity and nitroreductase gene expression is to be determined.
摘要:
Disclosed are nitro-substituted squaraine reporter dyes and methods using such dyes for detecting nitroreductase enzyme activity and nitroreductase gene expression in cellular assays. The dyes are of the structure: in which Z1 and Z2 independently represent a phenyl or a naphthyl ring system; X and Y are selected from oxygen, sulphur, —CH═CH— and the group: R1 and R2 are selected from C1-C4 alkyl, —(CH2)n—P, —{(CH2)2—O}p—R6 and group W; where P is selected from COOR7, SO3− and OH, W is mono- or di-substituted nitrobenzyl, R6 is methyl or ethyl, R7 is selected from H, C1-C4 alkyl and CH2OC(O)R8, where R8 is methyl, or t-butyl, n is an integer from 1 to 10, and p is an integer from 1 to 3; R3 and R4 are selected from hydrogen, NO2, halogen, SO3−, C1-C4 alkoxy and —(CH2)m, —COOR7; where R7 is hereinbefore defined and m is 0 or an integer from 1 to 5; R5 is C1-C6 alkyl optionally substituted with COOR7, SO3−, or OH; where R7 is hereinbefore defined; and at least one of groups R1, R2, R3 and R4 comprises at least one N02 group. Also provided are methods for screening for a test agent whose effect upon nitroreductase enzyme activity and nitroreductase gene expression is to be determined.