1-Benzyl-4-(carboxymethyl)-4-piperidinecarboxylic acid hydrochlor ide (1:1)

1-benzyl-4-(carboxymethyl)piperidine-4-carboxylic acid

1-(2,3-dihydro-1,4-benzodioxin-3-ylmethyl)piperidin-4-one

4-(1-benzyl-3,6-dihydro-2H-pyridin-4-yl)morpholine

1,3,8-triazaspiro[4.5]decan-4-one