| 摘要 |
This disclosure describes compositions of matter useful as growth inhibitors of transplanted tumors in mammals: and this invention discloses a method of inducing the regression and/or palliation of various types of tumors in mammals (mammary cancer, liver cancer, skin cancer, etc.), said method comprising giving to said mammals an effective amount of a compound of the following formula: <IMAGE> [wherein A represents an imidazolyl group or a pyridyl group, l represents 0 or 1, m and n each, which may be the same of different, represents an integer of 1 to 6, and, R represents a hydrogen atom or a lower alkyl group], or a salt thereof; the invention also discloses a method of inhibition (or prevention) of metastasis of the various cancers. The above formula compounds have low toxicity, and it is expected to apply various types of administration thereof such as oral administration and parenteral administration. In particular, it is expected that the compounds are useful as new type of medical (anti-cancer) compounds which can be administered orally.
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