| 摘要 |
An object of the present invention is to provide a compound having an action of inhibiting binding between S1P and its receptor, Edg-1 (S1P1), and is useful as a pharmaceutical compound. A compound or a pharmaceutically acceptable salt thereof, which compound is represented by the formula below (where A represents an oxygen atom, a sulfur atom, a group represented by Formula —SO—, a group represented by Formula —SO2—, or the like, R1 represents a hydrogen atom, an alkyl group having 1-6 carbon atoms, or the like, R1A represents a hydrogen atom or the like, R2 represents an alkyl group having 1-6 carbon atoms, a cycloalkyl group having 3-6 carbon atoms, or the like, R3 represents an aryl group, R4 represents a hydrogen atom or an alkyl group having 1-6 carbon atoms and optionally substituted with a carboxyl group, and R5 represents an alkyl group having 1-10 carbon atoms, a cycloalkyl group having 3-8 carbon atoms, an aryl group which is optionally substituted, or the like).
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