Compounds of the formula
and the pharmaceutically acceptable salts thereof are disclosed. In these compounds, R1 is halogen, -SR4 wherein R4 is H or alkyl of 1 to 4 carbon atoms, - OCH3, - OSO2Ar wherein Ar is phenyl or alkyl substituted phenyl wherein the alkyl group has 1 to 6 carbon atoms, -NR4R5 wherein R4 is as defined above and R5 is H, alkyl of 1 to 4 carbon atoms, amino, alkanoyl of 1 to 8 carbon atoms, benzoyl, methoxy or hydroxy or R1 is - N(CH3)3+ X- wherein X is halogen or -OSO2Ar wherein Ar is phenyl or alkyl substituted phenyl wherein the alkyl group has 1 to 6 carbon atoms;
R2 is H, alkanoyl of 1 to 8 carbon atoms or benzoyl;
R3 is A or B wherein A is
wherein R6 and R7 are independently selected from
wherein R6 and R9 are independently selected from pharmaceutically acceptable cations and H, H, or R6 and R7 taken together are
wherein R10 is selected from pharmaceutically acceptable cations and H; with the proviso that R4 is not H when: RS is H, R3 is A, and R6 and R7 are H. The compounds have anti-viral activity.
公开了式
及其药学上可接受的盐类。在这些化合物中,R1 是卤素,-SR4 其中 R4 是 H 或 1 至 4 个碳原子的烷基,-O ,-OSO2Ar 其中 Ar 是苯基或烷基取代的苯基,其中烷基有 1 至 6 个碳原子,-NR4R5 其中 R4 如上定义,R5 是 H、1至4个碳原子的烷基、
氨基、1至8个碳原子的烷酰基、苯甲酰基、甲氧基或羟基,或者 R1 是-N(
CH3)3+ X-,其中 X 是卤素或-OSO2Ar,其中 Ar 是苯基或烷基取代的苯基,其中烷基具有 1 至 6 个碳原子;
R2 是 H、1 至 8 个碳原子的烷酰基或苯甲酰基;
R3 是 A 或 B,其中 A 是
其中 R6 和 R7 独立选自
其中 R6 和 R9 独立选自药学上可接受的阳离子和 H、H 或 R6 和 R7 合在一起是
其中R10选自药学上可接受的阳离子和H;但R4在下列情况下不是H这些化合物具有抗病毒活性。