The present invention relates to the fluoro- 2- of 8- [4- (3- methoxyphenyls) piperazine -1- bases] -3- [2- methoxyl groups -5- (trifluoromethyl) phenyl] -3,4- dihydroquinazoline -4- bases } acetic acid sodium salt and calcium salt and its solvate, it is related to it with what treatment and/or the purposes of pre- preventing virus infection, with the purposes for the drug for being related to the treatment of its production what and/or prevention disease, more particularly its purposes as antivirotic, more particularly to the antivirotic of anti-cytomegalovirus.本發明涉及{8-氟-2-[4-(3-甲氧基苯基)哌嗪-1-基]-3-[2-甲氧基-5-(三氟甲基)苯基]-3,4-二氫喹唑啉-4-基}乙酸的鈉鹽和鈣鹽及其溶劑化物,涉及其用於治療和/或預防病毒感染的用途,和涉及其生産用於治療和/或預防疾病的藥物的用途,更特別是其作爲抗病毒劑、更特別是對抗巨細胞病毒的抗病毒劑的用途。