1-(2-乙氧基-乙基)-2-哌啶-4-基-1H-苯并咪唑

1-(4-fluoro-2-nitrophenyl)piperidine-4-carboxylic acid

1-[4-(2-苯乙基苯氧基)丁基]哌啶-4-羧酸盐酸盐

1-(3-硝基-2-吡啶基)-4-哌啶甲酸

1,4-bis(methoxycarbonyl)piperidine-4-carboxylate