The present invention relates to a pharmaceutical composition for preventing/treating conditions associated with PAR-2. The present invention also relates to a method for preventing/treating the condition using the pharmaceutical composition and use for manufacturing the pharmaceutical composition. The pharmaceutical composition comprises a compound represented by the following general formula (1), salt or solvate thereof and a pharmaceutically acceptable carrier: Ar—CO-AA
1
-AA
2
-AA
3
-AA
4
-NH—X—Y (1) wherein, Ar represents a phenyl group or an aromatic heterocyclic group optionally having substituent(s): AA
1
represents a hydrophobic amino acid: AA
2
represents an amino acid absent of substituent (s) having more than two carbon atoms: AA
3
represents an amino acid absent of substituent(s) having more than two carbon atoms: AA
4
represents a basic amino acid: X represents a straight-chain or branched bivalent saturated aliphatic hydrocarbon group having 1 to 6 carbon atoms: Y represents basic substituent (s); straight-chain, branched, or cyclic bivalent saturated aliphatic hydrocarbon group having 1 to 6 carbon atoms, or an aromatic hydrocarbon group having 6 to 10 carbon atoms. The compound represented by the general formula (1) has dramatically improved PAR-2 activation potency compared to peptide comprised of 6 amino acids (Tethered receptor agonist peptide: TRAP) in spite of reduction of the number of amino acid.
本发明涉及一种用于预防/治疗与PAR-2相关疾病的药物组合物。本发明还涉及使用该药物组合物预防/治疗该疾病的方法以及用于制造该药物组合物的用途。该药物组合物包括以下通式(1)所示的化合物,其盐或溶剂以及药学上可接受的载体:Ar-CO-
AA1-
AA2-
AA3-
AA4-NH-X-Y(1),其中,Ar代表苯基或芳香杂环基,可选地具有取代基;
AA1代表疏
水性
氨基酸;
AA2代表不含取代基(S)且具有两个以上碳原子的
氨基酸;
AA3代表不含取代基(S)且具有两个以上碳原子的
氨基酸;
AA4代表碱性
氨基酸;X代表具有1至6个碳原子的直链或支链二价饱和脂肪族羟基烃基;Y代表基本取代基(S);具有1至6个碳原子的直链、支链或环状二价饱和脂肪族羟基烃基,或具有6至10个碳原子的芳香族羟基烃基。与由6个
氨基酸组成的肽(Tethered receptor agonist peptide:
TRAP)相比,通式(1)所表示的化合物在减少
氨基酸数量的情况下具有显著改进的PAR-2激活效力。