[Problem] The present invention provides a novel compound having an S1P 1 receptor antagonistic activity. [Solution] The present invention provides a compound represented by the general formula (I): (in the formula, R 1 , R 2 and R 3 are each a hydrogen atom, a halogen atom, a C 1-6 alkyl group, a halo C 1-6 alkyl group or the like, R 4 is a C 1-6 alkyl group or the like, R 5 is a C 1-6 alkyl group or the like, R 6 is a C 1-6 alkyl group or the like, R 7 is a hydrogen atom, a halogen atom, a C 1-6 alkyl group or the like, R 8 is a halogen atom, a C 1-6 alkyl group, a halo C 1-6 alkyl group, a C 1-6 alkoxy group or the like, and R 9 is a hydrogen atom or a C 1-6 alkyl group.) or a pharmaceutically acceptable salt thereof, a pharmaceutical compositions containing same, and use thereof. The compounds of the present invention have an excellent SIP 1 receptor antagonistic activitiy and therefore are useful as an agent for the treatment or prevention of antoimmune diseases and the like.
