1-phenylmethyl 2-methyl 6-(tert-butyldiphenylsilyloxymethyl)-3-methylpiperidine-1,2-dicarboxylate

phenylmethyl 6-(tert-butyldiphenylsilyloxymethyl)-2-(2-ethoxycarbonylvinyl)-3-methylpiperidine-1-carboxylate

phenylmethyl 2-(tert-butyldiphenylsilyloxymethyl)-6-trifluoromethanesulfonyloxy-3,4-dihydro-2H-pyridine-1-carboxylate

(ethyl carbonic) (5S,8R,8aS)-8-methyl-3-oxooctahydroindolizine-5-carboxylic anhydride