| 摘要 |
The present invention relates to a compound represented by the following formula (1): wherein D1, A1, D2, R1, D3, and R2 each have the same meaning as defined in the present specification or a salt thereof. The compound represented by the formula (1) or a salt thereof has an IKK&bgr; inhibiting activity and the like and is useful for the prevention and/or treatment of IKK&bgr;-associated diseases or symptoms and the like. |
