Near infrared radiation in-vivo diagnostic methods and dyes
First Claim
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1. An in-vivo diagnostic near infrared radiation method comprising:
- (a) administering a compound of the general formula I
space="preserve" listing-type="equation">B.sub.1 --(F--W.sub.n).sub.m (I)whereinl represents a number from 0 to 6, n represents a number from 0 to 10 and m represents a number from 1 to 100;
B is a biological detecting unit having a molecular weight of up to 30,000 that bonds to specific cell populations or selectively to receptors, or accumulates in tissues or tumours, or generally stays in the blood, or is a macromolecule that bonds non-selectively;
F represents a dye showing maximum absorption in the range of 650 to 1200 nm having the general formula IIb ##STR10## wherein R3 to R12 are same or different, each independently representing a hydrogen atom, a residue B or W, or an alkyl or alkenyl residue containing up to 6 carbon atoms or an aryl or aralkyl residue containing up to 9 carbon atoms, said alkyl, alkenyl, aryl or aralkyl residue optionally carrying an additional residue W or W to each pair of adjacent residues R3 to R10 are annealed, with due regard for the interspersed atoms, 5- to 6-member rings that may be saturated, unsaturated or aromatic, and that may optionally carry residue R,R is a halogen atom, a hydroxy, carboxy, acetoxy, amino, nitro, cyano or sulfonic acid group or an alkyl, alkenyl, hydroxyalkyl, carboxyalkyl, alkoxy, alkoxycarbonyl, sulfoalkyl, alkylamino, dialkylamino or halogenalkyl residue containing up to 6 carbon atoms, an aryl, alkylaryl hydroxyaryl, carboxyaryl, sulfoaryl, arylamino, diarylamino, nitroaryl or halogenaryl residue containing up to 9 carbon atoms,s and t independently represent the numbers 0 to 1 on the condition that s and t do not represent the number 1 at the same time,X and Y are same or different, each independently representing an O, S, Se or Te or a --C(CH3)2 --, --CH═
CH-- or --CR13 R14 -- fragment,wherein R13 and R14 independently represent a hydrogen atom, a residue B or W, or an alkyl or alkenyl residue containing up to 6 carbon atoms or an aryl or aralkyl residue containing up to 9 carbon atoms, the alkyl, alkenyl, aryl or aralkyl residue optionally having an additional residue W;
W represents a hydrophilic group that improves water-solubility, with the n-octanol-water distribution coefficient of the compound according to formula I being less than or equal to 2.0 for l=0;
as well as their physiologically tolerable salts;
(b) irradiating the compound with light in the near infrared range; and
(c) recording the radiation produced by the compound.
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Abstract
This invention relates to an in-vivo diagnostic method based on near infrared radiation (NIR radiation) that uses water-soluble dyes and their biomolecule adducts, each having specific photophysical and pharmaco-chemical properties, as a contrast medium for fluorescence and transillumination diagnostics in the NIR range, to new dyes and pharmaceuticals containing such dyes.
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Citations
7 Claims
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1. An in-vivo diagnostic near infrared radiation method comprising:
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(a) administering a compound of the general formula I
space="preserve" listing-type="equation">B.sub.1 --(F--W.sub.n).sub.m (I)wherein l represents a number from 0 to 6, n represents a number from 0 to 10 and m represents a number from 1 to 100; B is a biological detecting unit having a molecular weight of up to 30,000 that bonds to specific cell populations or selectively to receptors, or accumulates in tissues or tumours, or generally stays in the blood, or is a macromolecule that bonds non-selectively; F represents a dye showing maximum absorption in the range of 650 to 1200 nm having the general formula IIb ##STR10## wherein R3 to R12 are same or different, each independently representing a hydrogen atom, a residue B or W, or an alkyl or alkenyl residue containing up to 6 carbon atoms or an aryl or aralkyl residue containing up to 9 carbon atoms, said alkyl, alkenyl, aryl or aralkyl residue optionally carrying an additional residue W or W to each pair of adjacent residues R3 to R10 are annealed, with due regard for the interspersed atoms, 5- to 6-member rings that may be saturated, unsaturated or aromatic, and that may optionally carry residue R, R is a halogen atom, a hydroxy, carboxy, acetoxy, amino, nitro, cyano or sulfonic acid group or an alkyl, alkenyl, hydroxyalkyl, carboxyalkyl, alkoxy, alkoxycarbonyl, sulfoalkyl, alkylamino, dialkylamino or halogenalkyl residue containing up to 6 carbon atoms, an aryl, alkylaryl hydroxyaryl, carboxyaryl, sulfoaryl, arylamino, diarylamino, nitroaryl or halogenaryl residue containing up to 9 carbon atoms, s and t independently represent the numbers 0 to 1 on the condition that s and t do not represent the number 1 at the same time, X and Y are same or different, each independently representing an O, S, Se or Te or a --C(CH3)2 --, --CH═
CH-- or --CR13 R14 -- fragment,wherein R13 and R14 independently represent a hydrogen atom, a residue B or W, or an alkyl or alkenyl residue containing up to 6 carbon atoms or an aryl or aralkyl residue containing up to 9 carbon atoms, the alkyl, alkenyl, aryl or aralkyl residue optionally having an additional residue W; W represents a hydrophilic group that improves water-solubility, with the n-octanol-water distribution coefficient of the compound according to formula I being less than or equal to 2.0 for l=0; as well as their physiologically tolerable salts; (b) irradiating the compound with light in the near infrared range; and (c) recording the radiation produced by the compound. - View Dependent Claims (2, 3)
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4. A cyanine dye of the general formula V ##STR13## where Q is a fragment selected from the group consisting of ##STR14## and ##STR15## where R30 represents a hydrogen atom, a hydroxy group, a carboxy group, an alkoxy residue containing 1 to 4 carbon atoms or a chlorine atom, b is an integer 2 or 3, R31 represents a hydrogen atom or an alkyl residue containing 1 to 4 carbon atoms,
X and Y independently represent an --O--, --S--, --CH═ - CH-- or --C(CH2 R32)(CH2 R33)-- fragment each,
R20 to R29, R32 and R33 independently represent a hydrogen atom, a hydroxy group, a carboxy-, a sulfonic acid residue or a carboxyalkyl-, alkoxycarbonyl or alkoxyoxoalkyl residue containing up to 10 C atoms or a sulfoalkyl residue containing up to 4 C atoms, or a non-selectively bonding macromolecule or a residue of the general formula VI
space="preserve" listing-type="equation">--(O).sub.v --(CH.sub.2).sub.o --CO--NR.sup.34 --(CH.sub.2).sub.s --(NH--CO).sub.q --R.sup.35 (VI)on the condition that, where X and Y are O, S, --CH═
CH-- or --C(CH3)2 -- at least one of the residues R20 to R29 corresponds to a non-selectively bonding macromolecule or a compound of the general formula VI, whereo and s equal 0 or independently represent an integer between 1 and 6, q and v independently represent 0 or 1, R34 represents a hydrogen atom or a methyl residue, R35 represents an alkyl residue containing 3 to 6 C atoms and comprising 2 to n-1 hydroxy groups, with n being the number of C atoms, or an alkyl residue containing 1 to 6 C atoms that carries 1 to 3 additional carboxy groups, an aryl residue containing 6 to 9 C atoms or arylalkyl residue containing 7 to 15 C atoms, or a residue of the general formula IIId or IIIe ##STR16## on the condition that q is 1, or a non-selectively bonding macromolecule, R20 and R21, R21 and R22, R22 and R23, R24 and R25, R25 and R26, R26 and R27, together with the interspersed carbon atoms, form a 5- or 6-member aromatic or saturated annelled ring, and its physiologically tolerable salts. - View Dependent Claims (5, 6, 7)
- CH-- or --C(CH2 R32)(CH2 R33)-- fragment each,
Specification