Long wavelength chemically reactive dipyrrometheneboron difluoride dyes and conjugates
First Claim
1. A compound of the formula:
- ##STR18## wherein at least one of the substituents R1 -R7 ts --Lm G, where G is a reactive functional group that is a carboxylic acid (--(C═
O)OH), a succinimidyl ester (--(C═
O)O(NC4 O2 H4)), an acyl azide (--(C═
O)N3), a mixed anhydride with ethyl carbonic acid (--(C═
O)O(C═
O)--OC2 H5), an acid halide (--(C═
O)X, where X is halide), an acrylamide (--NH(C═
O)CH═
CH2), an alcohol (--OH), a aldehyde (--CHO), an amine (--NH2), an azide (--N3), a haloacetamide (--NH(C═
O)CH2 X, where X is halide), a halomethyl (--CH2 X, where X is halide), a sulfonyl halide (--SO2 X, where X is halide), a hydrazine (--NHNH2), an isocyanate (--NCO), an isothiocyanate (--NCS), or maleimide group (--NCH4 H2 O2), and --Lm --, where m=0 or 1, is a substituted or unsubstituted alkyl (containing 1-5 carbons) or arylene group, or a linking bathochromic moiety that is an alkenylene group that is an ethenylene, dienylene, or trienylene, or is a heteroarylene; and
wherein the remaining substituents R1 -R7, any of which may be the same or different, are hydrogen;
halogen;
alkyl (containing 1-5 carbon atoms);
sulfo;
arylalkyl, the alkyl portion of which contains 1-5 carbon atoms;
or aryl which may be further substituted, one or more times, by alkyl (containing 1-5 carbon atoms), or alkoxy groups wherein the alkyl portions of such groups have less than 5 carbon atoms;
or a separate bathochromic moiety;
or combinations thereof;
such that at least one of the substituents R1 -R7 contains a linking bathochromic or contains a separate bathochromic moiety that is attached to the compound by a single covalent bond, where said separate bathochromic moiety is an alkenyl that is an ethenyl, dienyl, or trienyl, or is a heteroaryl group,where said alkenyl or alkenylene group optionally contains substituents, which may be the same or different, that are hydrogen, halogen, alkyl (containing 1-5 carbon atoms), cyano, methyl or ethyl carboxylate ester, carboxamide (--CONH2), aryl, or heteroaryl that is optionally substituted by aryl, arylalkyl, alkyl, or alkoxy groups;
the alkyl portions of which have fewer than 5 carbons and are optionally further substituted on the alkyl portion by methyl or ethyl carboxylate ester or carboxamide (CONH2); and
said heteroarylene or heteroaryl group optionally contains substituents, which may be the same or different, that are aryl, arylalkyl, alkyl, or alkoxy groups;
the alkyl portions of which have fewer than 5 carbons and are optionally further substituted on the alkyl portion by methyl or ethyl carboxylate ester or carboxamide (CONH2), or heteroaryl that is optionally substituted by aryl, arylalkyl, alkyl, or alkoxy groups;
the alkyl portions of which have fewer than 5 carbons and are optionally further substituted on the alkyl portion by methyl or ethyl carboxylate ester or carboxamide (CONH2);
said compound having an absorption maximum at a wavelength longer than about 525 nm in methanol and a quantum yield of greater than about 0.45.
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Accused Products
Abstract
This invention relates to derivatives of dipyrrometheneboron difluoride fluorescent dyes that have an absorption maximum at wavelengths longer than about 525 nm, and are chemically reactive with nucleic acids, proteins, carbohydrates, and other biologically derived or synthetic chemical materials. The dyes generally have the structure: ##STR1## wherein at least one of the substituents R1 -R7, is a reactive functional group, and at least one of the substituents R1 -R7 contains a bathochromic moiety. The bathochromic moiety is an unsaturated organic group, preferably heteroaryl or alkenyl. The remaining substituents, which may be the same or different, are hydrogen, halogen, alkyl (containing 1-5 carbon atoms), aryl, arylalkyl, or sulfo. The dyes are used to make novel conjugates with members of specific binding pairs that are ligands or receptors.
278 Citations
12 Claims
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1. A compound of the formula:
- ##STR18## wherein at least one of the substituents R1 -R7 ts --Lm G, where G is a reactive functional group that is a carboxylic acid (--(C═
O)OH), a succinimidyl ester (--(C═
O)O(NC4 O2 H4)), an acyl azide (--(C═
O)N3), a mixed anhydride with ethyl carbonic acid (--(C═
O)O(C═
O)--OC2 H5), an acid halide (--(C═
O)X, where X is halide), an acrylamide (--NH(C═
O)CH═
CH2), an alcohol (--OH), a aldehyde (--CHO), an amine (--NH2), an azide (--N3), a haloacetamide (--NH(C═
O)CH2 X, where X is halide), a halomethyl (--CH2 X, where X is halide), a sulfonyl halide (--SO2 X, where X is halide), a hydrazine (--NHNH2), an isocyanate (--NCO), an isothiocyanate (--NCS), or maleimide group (--NCH4 H2 O2), and --Lm --, where m=0 or 1, is a substituted or unsubstituted alkyl (containing 1-5 carbons) or arylene group, or a linking bathochromic moiety that is an alkenylene group that is an ethenylene, dienylene, or trienylene, or is a heteroarylene; andwherein the remaining substituents R1 -R7, any of which may be the same or different, are hydrogen;
halogen;
alkyl (containing 1-5 carbon atoms);
sulfo;
arylalkyl, the alkyl portion of which contains 1-5 carbon atoms;
or aryl which may be further substituted, one or more times, by alkyl (containing 1-5 carbon atoms), or alkoxy groups wherein the alkyl portions of such groups have less than 5 carbon atoms;
or a separate bathochromic moiety;
or combinations thereof;such that at least one of the substituents R1 -R7 contains a linking bathochromic or contains a separate bathochromic moiety that is attached to the compound by a single covalent bond, where said separate bathochromic moiety is an alkenyl that is an ethenyl, dienyl, or trienyl, or is a heteroaryl group, where said alkenyl or alkenylene group optionally contains substituents, which may be the same or different, that are hydrogen, halogen, alkyl (containing 1-5 carbon atoms), cyano, methyl or ethyl carboxylate ester, carboxamide (--CONH2), aryl, or heteroaryl that is optionally substituted by aryl, arylalkyl, alkyl, or alkoxy groups;
the alkyl portions of which have fewer than 5 carbons and are optionally further substituted on the alkyl portion by methyl or ethyl carboxylate ester or carboxamide (CONH2); and
said heteroarylene or heteroaryl group optionally contains substituents, which may be the same or different, that are aryl, arylalkyl, alkyl, or alkoxy groups;
the alkyl portions of which have fewer than 5 carbons and are optionally further substituted on the alkyl portion by methyl or ethyl carboxylate ester or carboxamide (CONH2), or heteroaryl that is optionally substituted by aryl, arylalkyl, alkyl, or alkoxy groups;
the alkyl portions of which have fewer than 5 carbons and are optionally further substituted on the alkyl portion by methyl or ethyl carboxylate ester or carboxamide (CONH2);said compound having an absorption maximum at a wavelength longer than about 525 nm in methanol and a quantum yield of greater than about 0.45. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- ##STR18## wherein at least one of the substituents R1 -R7 ts --Lm G, where G is a reactive functional group that is a carboxylic acid (--(C═
Specification