The present invention provides a novel compound having an excellent antitumor effect, stability and metabolic stability. The compound of the present invention is represented by the following general formula (1) wherein R
1
represents a halogen atom, an aryl group, an aryloxy group or a lower alkyl group optionally substituted with one or more halogen atoms; R
2
represents hydrogen atom, a halogen atom, a lower alkyl group or a lower alkoxy group; and; m represents an integer of 1 to 3; provided that when m represents 2 or 3, R
1
s are the same or different.
本发明提供了一种具有出色的抗肿瘤效果、稳定性和代谢稳定性的新型化合物。本发明的化合物由以下通式(1)表示,其中 R1 代表卤素原子、芳基、芳
氧基或一种或多种卤素原子取代的较低烷基基团;R2 代表
氢原子、卤素原子、较低烷基基团或较低烷
氧基基团;m 代表 1 到 3 的整数;但当 m 代表 2 或 3 时,R1 可以相同或不同。