To provide an amino phosphate derivative having an excellent sphingosine-1-phosphate (S1P) receptor modulatory action. As a result of continued intensive research to create a highly safe compound which has an S1P receptor modulatory action, is has been discovered that an amino phosphate derivative represented by the following general formula (1), has a strong S1P receptor modulatory action.Amino fosfatni derivat opšte formule (1)[gde R1 je trifluorometil grupa, R2 je atom hlora, R3 je alkil grupa pravog lanca sa 1 do 3 atoma ugljenika, X je atom kiseonika ili atom sumpora, i n je 2 ili 3], ili njegova farmaceutski prihvatljiva so ili hidrat.Prijava sadrži još 11 patentnih zahteva.