The present invention relates to compounds of formula I inhibiting P2X purinoceptor 3; particularly the invention relates to compounds that are amino quinazoline 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 P2X3receptors 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,其抑制P2X
嘌呤受体3; 特别是本发明涉及
氨基
喹唑啉衍
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其治疗用途。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,例如呼吸系统疾病,包括咳嗽,哮喘,特发性肺纤维化(IPF)和慢性阻塞性肺病(
COPD)。