Patent ID: 6951866

Claim:
A pyrimidine compound of the formula (1) or its salt wherein R 1 is a formula (2) wherein ring A is substituted or unsubstituted C 3-10 cycloalkane, substituted or unsubstituted C 5-10 cycloalkene, substituted or unsubstituted C 7-10 bicycloalkane, or substituted or unsubstituted heterocyclic ring having an O atom or a S atom as a heteroatom, and said S atom may form sulfinyl or sulfonyl together with one or two oxygen atoms, and R 4 is straight or branched C 1-10 alkyl, C 2-6 alkenyl, C 3-6 alkinyl, C 3-6 cycloalkyl, C 4-10 cycloalkyl-alkyl, or OR 8 , wherein R 8 is straight or branched C 1-10 alkyl, C 3-6 alkenyl, C 3-6 alkinyl, C 3-6 cycloalkyl or C 4-10 cycloalkyl-alkyl, or R 1 is a formula (3) wherein R 5 is straight or branched C 1-10 alkyl; C 2-6 alkenyl; C 3-6 alkinyl; straight or branched C 1-10 alkyl substituted by hydroxy, halogen atom or C 1-4 alkoxy; phenyl; C 3-8 cycloalkyl; a 5 to 7 membered saturated heterocyclic ring having one or two oxygen atoms as heteroatoms; or C(═O)R 9 , wherein R 9 is straight or branched C 1-10 alkyl, C 2-6 alkenyl, C 3-6 alkinyl, C 3-6 cycloalkyl, C 4-10 cycloalkyl-alkyl, or OR 10 , wherein R 10 is straight or branched C 1-10 alkyl, C 2-6 alkenyl, C 3-6 alkinyl, C 3-6 cycloalkyl or C 4-10 cycloalkyl-alkyl, R 6 is a hydrogen atom, straight or branched C 1-10 alkyl, C 6-10 aryl, halogen atom, C 6-10 aryl substituted by C 1-4 alkoxy or C 1-4 alkyl, carbamoyl, or hydroxymethyl, and R 7 is a hydrogen atom, or straight or branched C 1-10 alkyl, and R 2 is hydrogen atom, or straight or branched C 1-10 alkyl, and R 3 is straight or branched C 1-10 alkyl; C 3-6 cycloalkyl; straight or branched C 1-10 alkyl substituted by C 1-2 alkylcarbamoyl, C 2-4 dialkylcarbamoyl, C 1-4 alkoxy, C 1-4 alkoxycarbonyl, C 3-6 cycloalkyl, hydroxy, C 1-4 alkylcarbonyloxy, halogen atom, amino, C 2-4 acyl-substituted amino, C 1-4 alkyl-substituted sulfonylamino or C 1-5 alkoxycarbonylamino; a formula (4) wherein R 11 is phenyl, pyridyl, thienyl, or furyl and each of them may be substituted by one or more substituents selected from the group consisting of: a halogen atom, cyano, carbamoyl, C 1-4 alkoxy, or C 1-4 alkyl; n is an integer of 0-4, provided that n is an integer of 1-4 when R 11 is phenyl.