A 1,3,5-trisubstituted pyridinium salt of general formula I (I) wherein Xn- is a counterion in which n is an integer from 1 to 4; wherein R2 and R3 are each independently a substituent group comprising Ar, wherein Ar is an aryl or heteroaryl group, which is substituted or unsubstituted; wherein R1 is a substituent group linked to the quarternary nitrogen of the pyridinium ring by an aliphatic carbon; and wherein, when R1 is benzyl, R2 and R3 are not both phenyl, 3-MeO phenyl, 4-Br phenyl, 3-CF3 phenyl, 2-Me phenyl or 4-(4-tert BuPh) phenyl; when R1 is 3-MeO phenethyl, R2 and R3 are not both 3-MeO phenyl; and when R1 is dimethoxyphenethyl, R2 and R3 are not both phenyl.
通式I(I)的1,3,5-三取代
吡啶盐,其中Xn-是一个计数离子,其中n是从1到4的整数;其中R2和R3分别是包含Ar的取代基团,其中Ar是取代或未取代的芳基或杂环基团;其中R1是通过脂肪碳与
吡啶环的季
铵氮连接的取代基团;当R1是苄基时,R2和R3不都是苯基、3-
甲氧基苯基、4-
溴苯基、3-三
氟甲基苯基、2-甲基苯基或4-(4-叔丁基苄基)苯基;当R1是3-甲氧基苄基时,R2和R3不都是3-
甲氧基苯基;当R1是二甲氧基苄基时,R2和R3不都是苯基。