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    • 2. 发明授权
    • Anti-aggregatory agents for platelets
    • US5338725A
    • 1994-08-16
    • US906525
    • 1992-06-30
    • Iwao OjimaMasakatsu EguchiYoung-Im OhBarry S. Coller
    • Iwao OjimaMasakatsu EguchiYoung-Im OhBarry S. Coller
    • A61K38/00C07K7/02C07K14/75A61K37/02C07K7/06C07K7/08
    • C07K14/75C07K7/02A61K38/00
    • The present invention provides synthetic antiaggregatory agents for preventing inhibition of fibrinogen-platelet binding. These anti-aggregatory agents have the general formulas (1)-(5).H--[--(AA.sub.i).sub.i --R--G--D--(AA.sub.j).sub.j --].sub.n --Cx (1)[Ri--C(O)--R--G--D--(AA.sub.j).sub.j --].sub.n --CX (2)Cy--[--AA.sub.i).sub.i --R--G--D--(AA.sub.j).sub.i --].sub.n --Z (3)H--[--(AA.sub.i).sub.i --R--G--D--(AA.sub.j).sub.j --].sub.n --CZ--[--(AA.sub.k).sub.k --R--G--D--(AA.sub.l).sub.l --].sub.m --Z (4)[R.sub.1 --C(O)--R--G--D--(AA.sub.i).sub.i --].sub.n --CZ[--(AA.sub.j).sub.j ]--R--G--D--(AA.sub.k).sub.k --].sub.m --Z (5)in which: R=Arg; G=Gly; D=Asp; AA.sub.i, AA.sub.j, AA.sub.k and AA.sub.l = alpha-, beta- and omega-amino acid residues; (AA.sub.i).sub.i (AA.sub.j).sub.j =peptide chains having the same or different amino acid residues; (AA.sub.k).sub.k =peptide chains having the same or different amino acid residues; (AA.sub.l).sub.l =peptide chains having the same or different amino acid residues; i and j =integers 0-20; m =an integer 1-10; n=an integer 2-10; Cx =a conjugator bearing at least two amine residues in a molecule having 1-30 carbon atoms, i.e, diamines, triamines, tetramines, and polyamines, which can have other functional groups in the molecule; Cy =a conjugator bearing at least two carboxyl residues in a molecule having 1-30 carbon atoms, i.e., aliphatic, aromatic, heteroaromatic, cycloalkyl dicarboxylic acid, tricarboxylic acid, and polycarboxylic acid residues, which can have other functional groups in the molecule; Cz .sup.= a conjugator bearing at least one amine residue and one carboxyl residue in an aromatic or a cycloalkyl skeleton, having 1-30 carbon atoms, i.e., aromatic, heteroaromatic and cycloalkyl amino carboxylic acid, diamino carboxylic acid, diamino dicarboxylic acid, and ployamino polycarboxylic acid residues; R.sub.1 =an alkyl, aromatic, heteroaromatic, or cycloalkyl group having 1-30 carbons, which can have other functional groups in the molecule; and Z=carboxyl, amide, N-substituted amide, hydrazide, N-substituted hydrazide, or ester group.