| 摘要 |
<p>A benzimidazole derivative of formula (I) or its salt wherein A is a single bond or a C1-2 alyklene group (this alkylene group may optionally be substituted by a C1-4 alkyl group), R6 is a C¿1-4? alkyl group (this alkyl group may optionally be substituted by a phenyl group), B is a C2-3 alkylene group (this alkylene group may optionally be substituted by a C1-4 alkyl group), X is an oxygen atom, a sulfur atom or NR?7¿ (wherein R7 is a nitro group, a cyano group or a C¿1-4? alkoxy group), each of R?1 and R2¿ which are independent of each other, is a hydrogen atom, a halogen atom, a C¿1-4? alkyl group or a C1-4 alkoxy group, E is a C1-2 alkylene group (this alkylene group may optionally be substituted by a C1-4 alkyl group), R?3¿ is a phenyl group (this phenyl group may optionally be substituted by a halogen atom, a C¿1-4? alkyl group or a C1-4 alkoxy group), a C1-4 alkoxy group or a benzyloxy group, each of R?4 and R5¿ which are independent of each other, is a C¿1-4? alkyl group (this alkyl group may optionally be substituted by a phenyl group), D is a C1-2 alkylene group (this alkylene group may optionally be substituted by a C1-4 alkyl group), and Ar is a phenyl group (this phenyl group may optionally be substituted by a halogen atom, a C1-4 alkyl group, a C1-4 alkoxy group or a trifluoromethyl group).</p> |
