| 摘要 |
Provided is a compound represented by general formula (1) or a salt thereof, and a medicine containing the compound or the salt. (In the formula, R1 represents a hydrogen atom or CO2Ra; R2 represents a hydrogen atom, a halogen atom, or CO2Ra; R3 represents a hydrogen atom or a C1–10 hydroxyalkyl group; R4 represents a hydrogen atom, a hydroxy group, or a C1–10 alkoxy group; R5 represents a C1–5 chain alkyl group in which the hydrogen atoms are optionally substituted with halogen atoms, a C3–5 cyclic alkyl group in which the hydrogen atoms are optionally substituted with halogen atoms, a C1–5 hydroxyalkyl group, or an o-, p-, or m-halobenzyl group; A represents CH or a nitrogen atom; X1 and X3 independently represent hydrogen atoms or halogen atoms; X2 represents a hydrogen atom, a halogen atom, or a nitrile group; at least one of X1, X2, and X3 represents a halogen atom; and Ra independently represents a C1–10 alkyl group.) |
