申请人:Rhinopharma Limited
公开号:US07105663B2
公开(公告)日:2006-09-12
Compounds of general formula (I) wherein each of R1 and R2 independently represents a C1-6 alkyl or C2-7 acyl group; R5 represents a hydrogen atom or a C1-3 alkyl, C2-3 alkenyl or C2-3 alkynyl group; R6 represents a hydrogen atom or a C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, amino, C1-6 alkylamino, di(C1-6)alkylamino or C2-7 acylamino group, each of R7 and R8 independently represents a hydrogen or halogen atom or a hydroxy, trifluoromethyl, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C2-7 acyl, C1-6 alkythio, C1-6 alkoxy, C3-6 cycloalkyl; and R9 represents a hydrogen or halogen atom or a hydroxy, trifluoromethyl, C1-6 alkyl, C2-6 alkenyl, C2-6 alkynyl, C2-7 acyl, C1-6 alkythio, C1-6 alkoxy or C3-6 cycloalkyl group; X represents OCH2 or a group CR3R4, wherein each of R3 and R4 independently represents a hydrogen atom or a C1-3 alkyl group; each of R10 and R11 independently represents a hydrogen atom, a C1-3 alkyl, C3-6 cycloalkyl or phenyl group; y represents an oxygen atom or a group CHNO2, NCN, NH or NNO2, n is an integer from 2 to 4; or a salt thereof; are useful for treatment of respiratory disorders such as asthma. Compounds of the invention have a longer duration of action than the known compound trequinsin (9,10-dimethoxy-3-methyl-2-mesitylimino-2,3,6,7-tetrahydro-4H-pyrimido[6,1-a]-isoquinolin-4-one) and do not have trequinsin's very bitter taste.
通式(I)的化合物,其中R1和R2分别独立地表示C1-6烷基或C2-7酰基基团;R5表示氢原子或C1-3烷基,C2-3烯基或C2-3炔基基团;R6表示氢原子或C1-6烷基,C2-6烯基,C2-6炔基,氨基,C1-6烷基氨基,二(C1-6)烷基氨基或C2-7酰氨基基团,R7和R8分别独立地表示氢或卤素原子或羟基,三氟甲基,C1-6烷基,C2-6烯基,C2-6炔基,C2-7酰,C1-6烷硫基,C1-6烷氧基,C3-6环烷基;R9表示氢或卤素原子或羟基,三氟甲基,C1-6烷基,C2-6烯基,C2-6炔基,C2-7酰,C1-6烷硫基,C1-6烷氧基或C3-6环烷基;X表示OCH2或CR3R4基团,其中R3和R4分别独立地表示氢原子或C1-3烷基;R10和R11分别独立地表示氢原子,C1-3烷基,C3-6环烷基或苯基;y表示氧原子或CHNO2,NCN,NH或NNO2基团,n为2到4的整数;或其盐;对于治疗哮喘等呼吸系统疾病有用。本发明的化合物比已知的trequinsin(9,10-二甲氧基-3-甲基-2-间苯基亚胺基-2,3,6,7-四氢-4H-嘧啶并[6,1-a]-异喹啉-4-酮)具有更长的作用时间,并且不具有trequinsin的非常苦的味道。