Abstract: The present invention provides a compound represented by Formula (I): [wherein R1 represents CONR1aR1b (wherein R1a and R1b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R1a and R1b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group) or the like, R2 represents a hydrogen atom, CONR2aR2b (wherein R2a and R2b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R2a and R2b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group), NR2cR2d (wherein R2c and R2d may be the same or different and each represents a

Abstract: [wherein m and n may be the same or different and each represents an integer of 1 to 3 wherein m+n is 4 or less; R1 represents —NR4R5 (wherein R4 and R5 may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aralkyl or the like); R2 represents the above Formula (II), Formula (IV) or the like; A represents a single bond, —C(?O)—, —SO2—, —OC(?O)— or the like; and R3 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or the like] Bicyclic pyrimidine derivatives represented by the above Formula (I), or quaternary ammonium salts thereof, or pharmaceutically acceptable salts thereof, or the like, are provided.

Abstract: The present invention provides a compound represented by Formula (I): [wherein R1 represents CONR1aR1b (wherein R1a and R1b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R1a and R1b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group) or the like, R2 represents a hydrogen atom, CONR2aR2b (wherein R2a and R2b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R2a and R2b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group), NR2cR2d (wherein R2c and R2d may be the same or different and each represents a

Abstract: The present invention provides a compound represented by Formula (I): [wherein R1 represents CONR1aR1b (wherein R1a and R1b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R1a and R1b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group) or the like, R2 represents a hydrogen atom, CONR2aR2b (wherein R2a and R2b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R2a and R2b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group), NR2cR2d (wherein R2c and R2d may be the same or different and each represents a

Abstract: The present invention provides a compound represented by Formula (I): [wherein R1 represents CONR1aR1b (wherein R1a and R1b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R1a and R1b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group) or the like, R2 represents a hydrogen atom, CONR2aR2b (wherein R2a and R2b may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aryl, substituted or unsubstituted ararkyl or a substituted or unsubstituted heterocyclic group, or R2a and R2b are combined together with the adjacent nitrogen atom thereto to form a substituted or unsubstituted heterocyclic group), NR2cR2d (wherein R2c and R2d may be the same or different and each represents

Abstract: [wherein m and n may be the same or different and each represents an integer of 1 to 3 wherein m+n is 4 or less; R1 represents —NR4R5 (wherein R4 and R5 may be the same or different and each represents a hydrogen atom, substituted or unsubstituted lower alkyl, substituted or unsubstituted aralkyl or the like); R2 represents the above Formula (II), Formula (IV) or the like; A represents a single bond, —C(?O)—, —SO2—, —OC(?O)— or the like; and R3 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted aralkyl or the like] Bicyclic pyrimidine derivatives represented by the above Formula (I), or quaternary ammonium salts thereof, or pharmaceutically acceptable salts thereof, or the like, are provided.

Abstract: A pyrimidine derivative represented by Formula (I) wherein Ar represents substituted or unsubstituted aryl, R1 represents —NR2R3 and wherein R2 represents a hydrogen atom or substituted or unsubstituted lower alkyl and R3 represents substituted or unsubstituted lower alkyl, substituted or unsubstituted aralkyl, A represents a single bond, Formula (III) wherein m1 is 0 to 2, n1 is 0 to 4, a1 is from 0 to a substitutable number, R5 represents substituted or unsubstituted lower alkyl, and each R5 may be the same or different when a1 is 2 or more), and Q represents —NR6R7 (wherein R6 and R7 may be the same or different and each represents a hydrogen atom, a substituted or unsubstituted heteroalicyclic group, a substituted or unsubstituted heteroalicyclic group, substituted or unsubstituted piperidin-4-ylamino, or quaternary ammonium salts thereof, or pharmaceutically acceptable salts thereof.