Abstract: The present invention provides: an uracil derivative represented by general formula (I) or a physiologically acceptable salt thereof (in the formula, R1 represents a hydrogen atom, a C1-10 alkyl group, a C2-6 alkene group or a 3- to 6-membered saturated or 4- to 6-membered unsaturated aliphatic ring group which may contain 1 to 2 hetero atoms independently selected from the group consisting of N, O and S; R2 represents a hydrogen atom, a halogen atom, a cyano group, —NRcRd, —N?CHN(CH3)2, or an C1-3 alkyl group; Ar1 and Ar2 independently represent a 5- to 6-membered aromatic ring group which may contain 1 to 3 hetero atoms independently selected from the group consisting of N, O and S; and L represents a 6-membered aromatic ring group which may contain 1 to 4 nitrogen atoms, a pyrazole group, a triazole group, or an imidazole group); and a therapeutic agent or prophylactic agent for various inflammatory diseases associated with elastase, comprises the compound or the like as an active ingredient.

Abstract: The present invention provides: an uracil derivative represented by general formula (I) or a physiologically acceptable salt thereof (in the formula, R1 represents a hydrogen atom, a C1-10 alkyl group, a C2-6 alkene group or a 3- to 6-membered saturated or 4- to 6-membered unsaturated aliphatic ring group which may contain 1 to 2 hetero atoms independently selected from the group consisting of N, O and S; R2 represents a hydrogen atom, a halogen atom, a cyano group, —NRcRd, —N?CHN(CH3)2, or an C1-3 alkyl group; Ar1 and Ar2 independently represent a 5- to 6-membered aromatic ring group which may contain 1 to 3 hetero atoms independently selected from the group consisting of N, O and S; and L represents a 6-membered aromatic ring group which may contain 1 to 4 nitrogen atoms, a pyrazole group, a triazole group, or an imidazole group); and a therapeutic agent or prophylactic agent for various inflammatory diseases associated with elastase, comprises the compound or the like as an active ingredient.

Abstract: The present invention relates to a compound represented by the following formula (I), which is useful as an antiallergic agent and/or an anti-inflammatory agent, or a physiologically acceptable salt thereof and the like: wherein R1 and R2 are the same or different and each is an optionally substituted aryl group and the like, R3 is a hydrogen atom, a C1-6 alkyl group and the like, R4 and R5 are the same or different and each is a hydrogen atom, a halogen atom, a hydroxy group, a C1-6 alkyl group and the like, X is a single bond or —C(R6)(R7)—, R6 and R7 are the same or different and each is a hydrogen atom, a halogen atom, an optionally substituted C1-6 alkyl group and the like, or R6 and R7 optionally form, together with the carbon atom bonded thereto, an optionally substituted C3-8 cycloalkyl group and the like, ring group A is an azetidin-1-yl group and the like, m is 0, 1 or 2, and n is 0, 1 or 2.