1-propa-1,2-dienoxypiperidine

1-(2-cyclohexylprop-2-enyl)piperidine

piperidino-3 cyclohexyl-1 propene-1 trans

2-methyl-5-piperidin-1-ylpent-3-yn-2-ol

1-piperidin-1-ylhept-2-yn-4-ol