发明名称 NOVEL A4B7 PEPTIDE ANTAGONISTS
摘要 The invention relates to disulfide-rich peptide molecules which inhibit binding of α4β7 to the mucosal addressin cell adhesion molecule (MAdCAM) in vivo, and show high selectivity against α4β1 binding.
申请公布号 US2014294902(A1) 申请公布日期 2014.10.02
申请号 US201414229799 申请日期 2014.03.28
申请人 Protagonist Therapeutics, Inc. 发明人 Bhandari Ashok;Patel Dinesh V.;Mattheakis Larry C.
分类号 C07K7/08;A61K38/10;A61K47/48;C07K7/06;A61K38/08 主分类号 C07K7/08
代理机构 代理人
主权项 1. A peptide molecule comprising Formula (I) Xaa1-Xaa2-Xaa3-Xaa4-Xaa5-Xaa6-Xaa7-Xaa8-Xaa9-Xaa10-Xaa11-Xaa12-Xaa13-Xaa14, or a pharmaceutically acceptable salt thereof, wherein Xaa1 is selected from the group consisting of absent, Gln, Asp, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Asn, Glu, Leu, Val, Tyr, Trp, Ser, Met, Thr, a suitable isostere, and a corresponding D-amino acid; Xaa2 is selected from the group consisting of absent, Gln, Asp, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Asn, Glu, Leu, Val, Tyr, Trp, Ser, Met, Thr, a suitable isostere, and a corresponding D-amino acid; Xaa3 is selected from the group consisting of absent, Gln, Asp, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Asn, Glu, Leu, Val, Tyr, Trp, Met, Thr, Ser, a suitable isostere, and a corresponding D-amino acid; Xaa4 is selected from the group consisting of Cys, Asp, Glu, Lys, Pen, HGlu, HLys, Orn, Dap, Dab, βAsp, βGlu, HGlu, HLys, a suitable isostere, and a corresponding D-amino acid; Xaa5 is selected from the group consisting of Gln, Asn, Asp, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Glu, Leu, Val, Tyr, Trp, Met, Thr, HArg, 4-Guan, Cit, Cav, Dap, Dab, Phe(4-NH2), a suitable isostere, and a corresponding D-amino acid; Xaa6 is selected from the group consisting of Ser, Gln, Asn, Asp, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Glu, Leu, Val, Thr, Trp, Tyr, Met, a suitable isostere replacement and a corresponding D-amino acid; Xaa7 is selected from the group consisting of Asp, and a suitable isostere replacement; Xaa8 is selected from the group consisting of Thr, Gln, Ser, Asn, Asp, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Glu, Val, Tyr, Trp, Leu, Met, a suitable isostere, and a corresponding D-amino acid; Xaa9 is selected from the group consisting of Gln, Asn, Asp, Pro, Gly, Ala, Phe, Leu, Glu, Ile, Val, HLeu, n-Butyl Ala, n-Pentyl Ala, n-Hexyl Ala, Nle, cyclobutyl-Ala, HCha, a suitable isostere, and a corresponding D-amino acid; Xaa10 is selected from the group consisting of Cys, Asp, Lys, Glu, Pen, HAsp, HGlu, HLys, Orn, Dap, Dab, HLys, a suitable isostere, and a corresponding D-amino acid; Xaa11 is selected from the group consisting of absent, Gly, Gln, Asn, Asp, Ala, Ile, Leu, Val, Met, Thr, Lys, Trp, Tyr, His, Glu, Ser, Arg, Pro, Phe, Sar, 1-Nal, 2-Nal, HPhe, Phe(4-F), dihydro-Trp, Dap, Dab, Orn, D-Orn, D-Dap, D-Dab, Bip, Ala(3,3 diphenyl), Biphenyl-Ala, D-Phe, D-Trp, D-Tyr, D-Glu, D-His, D-Lys, 3,3-diPhe, β-HTrp, F(4-CF3), O-Me-Tyr, 4-Me-Phe, an aromatic ring substituted Phe, an aromatic ring substituted Trp, an aromatic ring substituted His, a hetero aromatic amino acid, N-Me-Lys, N-Me-Lys(Ac), 4-Me-Phe, a corresponding D-amino acid; a suitable isostere; and a suitable linker moiety. Xaa12 is selected from the group consisting of absent, Glu, Lys, Gln, Pro, Gly, His, Ala, Ile, Phe, Arg, Leu, Val, Tyr, Trp, Met, Gla, Ser, Asn, Asp, Dap, Dab, Orn, D-Orn, D-Dap, D-Dab, β-HGlu, 2-Nal, 1-Nal, Bip, β-HPhe, βGlu, a suitable isostere, a suitable linker moiety, and a corresponding D-amino acid; Xaa13 is selected from the group consisting of absent, Gln, Pro, Gly, His, Ala, Ile, Phe, Lys, Arg, Leu, Val, Tyr, Trp, Met, Glu, Gla, Ser, Asn, Dap, Dab, Orn, D-Orn, D-Dap, D-Dab, absent, a suitable isostere, and a corresponding D-amino acid; and Xaa14 is selected from the group consisting of absent, a natural amino acid, a suitable isostere, and a corresponding D-amino acid, wherein the peptide further comprises a bond selected from the group consisting of a disulfide bond and a lactam bond between Xaa4 and Xaa10.
地址 Redwood City CA US