1-(4-氟苄基)-1H-苯并[d]咪唑-2(3H)-酮

4-（2-酮酸-1-苯并咪唑）哌啶

1,3-二氢-1-(4-哌啶基)-2H-咪唑并[4,5-b]吡啶-2-酮

4-异硫氰酸基哌啶-1-羧酸乙酯

4-(1H-苯并咪唑-2-基氨基)-1-哌啶羧酸乙酯