1-(2-Bromoethyl)piperidine hydrobromide

1-[(2-ethyl-2-methyl-1,3-dioxolan-4-yl)methyl]piperidine

5-methyl-2-piperidin-1-yl-6H-1,3-thiazine

2-piperidin-1-yl-5,6,7,8-tetrahydro-4H-3,1-benzothiazine

2-piperidin-1-yl-4,5,6,7,8,9-hexahydrocyclohepta[d][1,3]thiazine