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US4849505A Expired / Lapsed US ⏱️ 0.0 years remaining

Detectable molecules, method of preparation and use

Assignee: Enzo Diagnostics Inc
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Filing: 1987-04-28
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Granted: 1989-07-18
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Expires: 2007-04-28
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Abstract

Abstract A detectable molecule of the formula A3-(-X-R1-E-Detb)m where A3 is A2 or a polymer, where A3 has at least one modifiable reactive group selected from the group consisting of amino, hydroxy, cis OH, halides, aryl, imidazoyl, carbonyl, carboxy, thiol or a residue comprising an activated carbon; -X- is selected from the group consisting of <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> -R1- is <IMAGE> or a C1-C10 branched or unbranched alkyl or aralkyl, which may be substituted by -OH; -Y- is a direct bond to -E-, or -Y- is -E-R2- where R2 is a C1-C10 branched or unbranched alkyl; Za is chlorine, bromine or iodine; E is O, NH or an acyclic divalent sulfur atom; Detb is a chemical moiety capable of being detected, preferably comprising biotin or a metal chelator of the formula: <IMAGE> or the 4-hydroxy or acyloxy derivatives thereof, where R3 is C1-C4 alkyl or CH2COOM, M is the same or different and selected from the group consisting of hydrogen, a metal or non-metal cation or is C1-C10 alkyl, aryl or aralkyl; and m is an integer from 1 to the total number of modified reactive groups on A3. The detectable molecules are useful in in vitro or in vivo assays or therapy.

Inventors

  • 👤 Jannis G. Stavrianopoulos

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 22:12
CPC Classifications
A; A61; A61K; A61K51/00; A61K51/02; A61K51/04; A61K51/08; A61K51/10; A61K51/1093; A61K51/0497; G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/531; G01N33/532; G01N33/533; G01N33/543; G01N33/551; G01N33/553

Claims Analysis

Total Claims: 7
Claim 1
Independent Claim 105 words
A detectable molecule of the formula: ##STR53## where A 4 is A 2 or a polymer, both A 2 and the polymer having at least one modifiable reactive group selected from the group consisting of amino, aryl, imidazoyl and a residue comprising an activated carbon; A 2 is a specific binding ligand having a molecular weight of less than about 2,000; j is an electron withdrawing group; K is a signal generating entity or a solid matrix; n is an integer from one to about two; and m is an integer from one to the total number of modifiable reactive groups on A 4 .
Claim 2
Dependent Claim 105 words
A detectable molecule of the formula: ##STR53## where A 4 is A 2 or a polymer, both A 2 and the polymer having at least one modifiable reactive group selected from the group consisting of amino, aryl, imidazoyl and a residue comprising an activated carbon; A 2 is a specific binding ligand having a molecular weight of less than about 2,000; j is an electron withdrawing group; K is a signal generating entity or a solid matrix; n is an integer from one to about two; and m is an integer from one to the total number of modifiable reactive groups on A 4 .
Claim 3
Dependent Claim 19 words
The molecule of claim 1 wherein j is selected from the group consisting of chlorine, fluorine, bromine, and iodine.
Claim 4
Dependent Claim 9 words
The molecule of claim 2 wherein j is chlorine.
Claim 5
Dependent Claim 14 words
The molecule of claim 1 wherein A 4 is a polynucleotide or a polypeptide.
Claim 6
Dependent Claim 9 words
The molecule of claim 1 wherein n is two.
Claim 7
Dependent Claim 9 words
The molecule of claim 1 having the formula: ##STR54##

References Cited (Backward Citations)

GB2019408A Cited
US4298685A Cited
US4374120A Cited
EP0063879A2 Cited
US4637988A Cited
US4563419A Cited
US4472509A Cited
US4535057A Cited
EP0117440A1 Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1992-07-17 1993-01-16 1993-07-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1996-07-17 1997-01-16 1997-07-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2000-07-17 2001-01-16 2001-07-18 $7700.00 Window Closed / Lapsed

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