Use of the compound or pharmaceutically acceptable salt thereof, pharmaceutical composition, the compound or pharmaceutically acceptable salt thereof and processes for preparing the compound or pharmaceutically acceptable salt thereof

Use of the compound or pharmaceutically acceptable salt thereof, pharmaceutical composition, the compound or pharmaceutically acceptable salt thereof and processes for preparing the compound or pharmaceutically acceptable salt thereof this invention provides a derivative of the diaminopyrimidine, or a pharmaceutically acceptable salt thereof, a process for their preparation, a composition and comprises the pharmaceutical use. derivative of the diaminopyrimidine, or a pharmaceutically acceptable salt thereof, acts as a 5-HT4 receptor agonist and therefore can be usefully applied in the prevention or treatment of a dysfunction of gastrointestinal motility of the gastrointestinal diseases such as reluxo disease gastroesophageal (GERD), constipation, irritable bowel syndrome (iBS), dyspepsia, postoperative ileus paralytic, slow gastric emptying, gastroparesis, intestinal pseudo-obstruction, delayed transit induced by drug or diabetic gastric atony.