The present invention relates to formula (I) noval chemical compound and its officinal salt and include their compositions. The invention further relates to the methods for preparing above-mentioned noval chemical compound and its officinal salt with what. Formula (I) compound can treat a variety of diseases relevant to 5-HT4 receptors with what.本發明涉及式(I)新化合物及其可藥用鹽以及包含它們的組合物。本發明還涉及用於製備上述新化合物及其可藥用鹽的方法。式(I)化合物可用於治療與5-HT4受體相關的多種疾病。