A compound represented by the general formula (1) below or a pharmacologically acceptable salt thereof:
[In the formula (1),
R
1
and R
2
may be the same or different and each represents a hydrogen atom, a halogen atom, a hydroxyl group, a carboxy group, a cyano group, an optionally substituted C
1-6
alkyl group et al.; R
3
represents a hydrogen atom; R
4
represents an optionally substituted 4- to 10-membered monocyclic heterocyclic group containing 1 to 4 heteroatoms selected from an oxygen atom, a nitrogen atom, and a sulfur atom; X represents a group represented by the following formula: —CH
2
—, —CH
2
—CH
2
—, —CH
2
—CH
2
—CH
2
—, or —CH
2
—O—CH
2
—; and Z represents a hydrogen atom or a hydroxyl group.]
通用公式(1)表示的化合物或其药理学上可接受的盐:[在公式(1)中,R1和R2可以相同也可以不同,每个代表
氢原子,卤原子,羟基,羧基,
氰基,可选择地取代的C1-6烷基等;R3代表
氢原子;R4代表可选择地取代的含有1至4个异原子(从
氧原子,
氮原子和
硫原子中选择)的4至10元单环杂环基团;X代表以下式表示的基团:—
CH2—,— — —,— — — —,或— —O— —;Z代表
氢原子或羟基。]