Abstract: A therapeutic or prophylactic agent for leukemia is disclosed. The therapeutic or prophylactic agent comprises as an effective ingredient a glycine derivative having a specific structure or a pharmaceutically acceptable salt thereof, for example, the below-described compound [(E)-2-(2,6-dichlorobenzamido)-5-[4-(isopropyl-pyrimidin-2-ylamino)phenyl]pent-4-enoic acid]. The therapeutic or prophylactic agent for leukemia according to the present invention shows the excellent absorbability and in vivo stability when orally administered, and exhibits prominent therapeutic or prophylactic effects.

Abstract: The compounds of the disclosure, for example, the compound represented by the formula: has excellent therapeutic and prophylactic effects against inflammatory bowel disease. Further, they are excellent in absorption and in vivo stability when administered orally in comparison with conventional compounds. That is, the compounds can be administered orally, and can have excellent therapeutic or prophylactic effect sustained for a longer period of time.

Abstract: A therapeutic or prophylactic agent for allergic dermatitis is disclosed. The therapeutic or prophylactic agent comprises as an effective ingredient a glycine derivative having a specific structure or a pharmaceutically acceptable salt thereof, for example, the below-described compound [(E)-2-(2,6-dichlorobenzamido)-5-[4-(isopropyl-pyrimidin-2-ylamino)phenyl]pent-4-enoic acid]. The therapeutic or prophylactic agent for allergic dermatitis according to the present invention has high therapeutic or prophylactic effect.

Abstract: A glycine derivative which is, e.g., the following compound (Chemical formula (1)). It is highly effective in the treatment and prevention of inflammatory bowel diseases. Compared to conventional compounds, the compound is excellent in absorbability in oral administration and in vivo stability. The compound can be orally administered and can retain an excellent therapeutic or preventive effect over a longer period.