2,6-BIS(2-HYDROXYETHYLAMINO)-4,8-DIPIPERIDINOPYRIMIDO(5,4-D)PYRIMIDINEDIPYRIDAMOLE

3-(1-哌啶基)苯甲酸甲酯

(R)-(+)-1-(2-PYRROLIDINYLMETHYL)PIPERIDINE

1-propylsulfonylpiperidine

Piperidinium 4-methoxyselenobenzoate