2-methyl-2-piperidin-2-yl-propionic acid methyl ester

methyl 2-methyl-2-(N-tosyl)-piperidin-2-ylpropionate

1-(but-3-en-1-yl)-3,3-dimethyl-4-(phenylthio)azetidin-2-one

methyl N-(1-methoxy-2-methylpropyl)carbamate

1-(4-methylphenyl)sulfonylpiperidin-2-one