1-phenylmethyl 2-methyl 6-(tert-butyldiphenylsilyloxymethyl)-5,6-dihydro-4H-pyridine-1,2-dicarboxylate

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