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—AA1—AA2—AA3—AA4—NH—X—Y (1) wherein, Ar represents a phenyl group or an aromatic heterocyclic group optionally having substituent(s): AA1 represents a hydrophobic amino acid: AA2 represents an amino acid absent of substituent(s) having more than two carbon atoms: AA3 represents an amino acid absent of substituent(s) having more than two carbon atoms: AA4 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有关的疾病的药物组合物。本发明还涉及一种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。该药物组合物包括下列通式(1)所代表的化合物,其盐或溶剂和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,可选择具有取代基;
AA1代表疏
水氨基酸;
AA2代表没有取代基的含有两个以上
碳原子的
氨基酸;
AA3代表没有取代基的含有两个以上
碳原子的
氨基酸;
AA4代表碱性
氨基酸;X代表直链或支链的二价饱和
脂肪族羟基烃基,其具有1到6个
碳原子;Y代表碱性取代基;直链、支链或环状的二价饱和
脂肪族羟基烃基,其具有1到6个
碳原子;或具有6到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)所代表的化合物的
PAR-2激活效能显著提高,尽管
氨基酸数量减少。