A stabilized physiologically active benzimidazole derivative having the formula (I):
wherein R¹ is hydrogen atom, an alkyl group having 1 to 8 carbon atoms, a fluoroalkyl group having 1 to 6 carbon atoms, a cycloalkyl group, phenyl group or an aralkyl group, R² is hydrogen atom or a lower alkyl group, or R¹ and R² together with the adjacent nitrogen atom form a ring, and each of R3a, R3b, R4a, R4b and R4c independently is hydrogen atom, a halogen atom, a flouroalkyl group having 1 to 6 carbon atoms, a lower alkyl group, a lower alkoxy group, a lower alkoxycarbonyl group or an amino group. The stabilized benzimdazole derivative is in amorphous form or present in contact with a basic material.
一种具有稳定生理活性的
苯并咪唑衍
生物,其式为(I):
其中 R¹ 是氢原子、具有 1 至 8 个碳原子的烷基、具有 1 至 6 个碳原子的氟烷基、环烷基、苯基或芳烷基,R² 是氢原子或低级烷基,或 R¹ 和 R² 与相邻的氮原子一起形成一个环、R3a、R3b、R4a、R4b 和 R4c 各自独立地为氢原子、卤素原子、具有 1 至 6 个碳原子的氟烷基、低级烷基、低级烷氧基、低级烷氧羰基或
氨基。稳定的
苯并咪唑衍
生物为无定形形式或与碱性物质接触存在。