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    • 4. 发明授权
    • Thrombin receptor antagonists
    • 凝血酶受体拮抗剂
    • US5446131A
    • 1995-08-29
    • US328388
    • 1994-10-24
    • John M. Maraganore
    • John M. Maraganore
    • C12N15/09A61K38/00A61K38/55A61P3/00A61P7/02A61P9/00A61P11/00A61P25/00A61P29/00A61P43/00C07K7/06C07K14/46C12N9/74C12N15/62C12P21/02C12R1/91C07K7/00C07K7/08
    • C12N9/6429C07K14/46C12N15/62C12Y304/21005A61K38/00C07K2319/00C07K2319/02C07K2319/55C07K2319/74
    • This invention relates to novel, biologically active molecules which bind to and inhibit the thrombin receptor. These thrombin receptor antagonists are further characterized by their ability to inhibit thrombin-induced platelet aggregation and their inability to inhibit platelet aggregation induced by an internal peptide fragment of the platelet thrombin receptor. More specifically, the thrombin receptor antagonist of this invention comprises the formula: A.sub.1 -X-X-X-A.sub.2 -X-A.sub.3 -X-A.sub.4 -B-X-A.sub.5 -C-X-A.sub.6 ; wherein each of A.sub.1 and A.sub.6, either the same or different, are selected from the group consisting of a positively charged amino acid and an acyl or alkyl chain comprising from 1 to 10 backbone atoms and a positively charged side group; each of A.sub.2, A.sub.3, A.sub.4 and A.sub.5, is a positively charged amino acid, either the same or different; each X is any amino acid, either the same or different; B is an amino acid containing an aryl side chain; and C is a polar amino acid. This invention also relates to compositions and methods which employ these molecules for therapeutic and prophylactic purposes.
    • 本发明涉及结合并抑制凝血酶受体的新型生物活性分子。 这些凝血酶受体拮抗剂的特征还在于其抑制凝血酶诱导的血小板聚集和不能抑制由血小板凝血酶受体的内部肽片段诱导的血小板聚集的能力。 更具体地,本发明的凝血酶受体拮抗剂包含式:A1-X-X-X-A2-X-A3-X-A4-B-X-A5-C-X-A6; 其中A1和A6各自相同或不同,选自带正电荷的氨基酸和包含1至10个骨架原子和带正电的侧基的酰基或烷基链; A2,A3,A4和A5中的每一个是带正电荷的氨基酸,相同或不同; 每个X是任何相同或不同的氨基酸; B是含有芳基侧链的氨基酸; C是极性氨基酸。 本发明还涉及使用这些分子用于治疗和预防目的的组合物和方法。