Quaternary ammonium immunogenic conjugates and immunoassay reagents
First Claim
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1. A quaternary ammonium conjugate useful for eliciting antibodies to a non-quaternary ammonium hapten or in an immunoassay for determining the presence and/or amount in a test sample of a non-quaternary ammonium hapten, the quaternary ammonium conjugate comprising compounds of the formula:
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space="preserve" listing-type="equation">((Q.sup.+ --L--Z).sub.x M) B.sup.-whereinQ+ is a quaternary ammonium group, cyclic or acyclic, derived by covalent attachment of a linker to a hapten selected from the group consisting of cocaine, methadone, methaqualone, propoxyphenes, phencyclidine, amphetamine, benzodiazepams, quinidine, procanimide, N-acetyl procanimide, and tricyclic amines;
L is a linker comprising from 0 to 20 carbon atoms and heteroatoms arranged in a straight or branched chain and/or containing ring structures, with no more than a total of 6 heteroatoms and with no more than two heteroatoms linked in sequence;
Q+ is linked to L at the tertiary amine group of the hapten;
--Z-- is a residue group selected from the group consisting of --C═
O, --CH═
, --N═
N--, --NH--, --NCH3, --NH--S═
C, --SO2 --, --O--C═
O, and --C═
O--NH--NH2 --;
x is greater than or equal to 1;
M is a carrier selected from the group consisting of poly(amino)acids, carbohydrates, yeasts, polysaccharides and solid phase particles;
B- is an anion; and
(Q+ --L--Z)x -- is covalently bound to M.
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Abstract
This invention relates to novel quaternary ammonium immunogenic conjugates and reporter reagents useful for eliciting antibodies and in immunoassays. Processes for preparing such quaternary ammonium immunogenic conjugates and their use in immunoassays and in eliciting antibodies are also disclosed.
171 Citations
10 Claims
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1. A quaternary ammonium conjugate useful for eliciting antibodies to a non-quaternary ammonium hapten or in an immunoassay for determining the presence and/or amount in a test sample of a non-quaternary ammonium hapten, the quaternary ammonium conjugate comprising compounds of the formula:
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space="preserve" listing-type="equation">((Q.sup.+ --L--Z).sub.x M) B.sup.-wherein Q+ is a quaternary ammonium group, cyclic or acyclic, derived by covalent attachment of a linker to a hapten selected from the group consisting of cocaine, methadone, methaqualone, propoxyphenes, phencyclidine, amphetamine, benzodiazepams, quinidine, procanimide, N-acetyl procanimide, and tricyclic amines; L is a linker comprising from 0 to 20 carbon atoms and heteroatoms arranged in a straight or branched chain and/or containing ring structures, with no more than a total of 6 heteroatoms and with no more than two heteroatoms linked in sequence; Q+ is linked to L at the tertiary amine group of the hapten; --Z-- is a residue group selected from the group consisting of --C═
O, --CH═
, --N═
N--, --NH--, --NCH3, --NH--S═
C, --SO2 --, --O--C═
O, and --C═
O--NH--NH2 --;x is greater than or equal to 1; M is a carrier selected from the group consisting of poly(amino)acids, carbohydrates, yeasts, polysaccharides and solid phase particles; B- is an anion; and (Q+ --L--Z)x -- is covalently bound to M. - View Dependent Claims (2, 5, 6, 7, 8, 9, 10)
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3. A quaternary ammonium conjugate prepared by a process which comprises:
coupling a quaternary ammonium hapten to a carrier, the carrier selected from the group consisting of poly(amino)acids, carbohydrates, yeasts, polysaccharides, and solid phase particles, the quaternary ammonium hapten obtained by attaching a bifunctional linking group to a hapten selected from the group consisting of cocaine, methadone, methaqualone, propoxyphenes, phencyclidine, amphetamine, benzodiazepams, quinidine, procanimide, N-acetyl-procanimide, and tricyclic amines, the bifunctional linking group covalently bindable to the carrier and comprising from 0 to 20 carbon atoms and heteroatoms arranged in a straight or branched chain and/or containing ring structures, with no more than a total of 6 heteroatoms and no more than two heteroatoms linked in sequence. - View Dependent Claims (4)
Specification