A compound represented by the general formula (I) or a pharmacologically acceptable salt thereof or a solvate or a hydrate thereof: ** Formula ** wherein, in the formula (I), Ar1 is a phenyl group that optionally has a substituent or substituents, a 5-membered aromatic heterocyclic group that optionally has a substituent or substituents, a 6-membered aromatic heterocyclic group that optionally has a substituent or substituents, or a bicyclic aromatic heterocyclic group having 8 or 9 atoms and optionally having a substituent or substituents； Ar2 is a phenyl group that optionally has a substituent or substituents (with the exception of a phenyl group substituted only with a halogen atom), a 5-membered aromatic heterocyclic group that optionally has a substituent or substituents, an aromatic heterocyclic group of 6 members that optionally have a substituent or substituents or a bicyclic aromatic heterocyclic group having 8 or 9 atoms and optionally having a substituent or substituents； X is a group selected from the group consisting of the following a), b) and c), a) an oxygen atom or a sulfur atom, b) NR4, and c) NOR4, where, when X is b) oc ), R4 is a hydrogen atom, a phenyl group that optionally has a substituent or substituents, a heterocyclic group that optionally has a substituent or substituents or a C1 to C6 alkyl group that optionally has a substituent or substituents； R1 is a hydrogen atom, a hydroxy group, a C1 to C6 alkoxy group that optionally has a substituent or substituents or a C1 to C6 alkyl group that optionally has a substituent or substituents； R2 and R3 are independently from each other a hydrogen atom or a C1 to C6 alkyl group that optionally has a substituent or substituents or together form a C2 to C6 alkylene group； and each carbon atom marked with an asterisk is an asymmetric carbon atom]. wherein the expression "which optionally has a substituent or substituents" means optionally substituted with one or more substituents selected from the gr
