An object of the present invention is to provide a compound having an action of inhibiting binding between S1P and its receptor, Edg-1 (S1P
1
), 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 —SO
2
—, or the like, R
1
represents a hydrogen atom, an alkyl group having 1-6 carbon atoms, or the like, R
1A
represents a hydrogen atom or the like, R
2
represents an alkyl group having 1-6 carbon atoms, a cycloalkyl group having 3-6 carbon atoms, or the like, R
3
represents an aryl group, R
4
represents a hydrogen atom or an alkyl group having 1-6 carbon atoms and optionally substituted with a carboxyl group, and R
5
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).
本发明的目的是提供一种化合物,具有抑制S1P与其受体Edg-1(S1P1)结合的作用,并且可用作制药化合物。该化合物或其药学上可接受的盐,该化合物由以下公式表示(其中A表示氧原子、
硫原子、由公式-SO-表示的基团、由公式-SO2-表示的基团或类似的基团,R1表示氢原子、具有1-6个碳原子的烷基或类似的基团,R1A表示氢原子或类似的基团,R2表示具有1-6个碳原子的烷基、具有3-6个碳原子的环烷基或类似的基团,R3表示芳基基团,R4表示氢原子或具有1-6个碳原子并且可选地带有羧基的烷基基团,R5表示具有1-10个碳原子的烷基、具有3-8个碳原子的环烷基、可选地被取代的芳基基团或类似的基团)。