The present invention relates to compounds of formula I inhibiting P2X purinoceptor 3 (hereinafter P2X3 inhibitors); particularly the invention relates to compounds that are pyridopyrimidines derivatives, methods of preparing such compounds, pharmaceutical compositions containing them and therapeutic use thereof. The compounds of the invention may be useful in the treatment of many disorders associated with P2X3 receptors mechanisms, such as respiratory diseases including cough, asthma, idiopathic pulmonary fibrosis (IPF) and chronic obstructive pulmonary disease (COPD).
本发明涉及公式I的化合物,抑制P2X
嘌呤受体3(以下简称P2X3
抑制剂);特别是涉及
吡啶嘧啶衍
生物化合物,制备这种化合物的方法,含有它们的药物组合物以及它们的治疗用途。本发明的化合物可能在治疗许多与P2X3受体机制相关的疾病中有用,如呼吸道疾病,包括咳嗽、哮喘、特发性肺纤维化(IPF)和慢性阻塞性肺病(
COPD)。