N-(2-phenylethyl)piperidine-1-carboxamide

1-[(2S)-吡咯烷甲基]哌啶

dimethyl 2-[(2-nitrophenyl)methylidene]propanedioate

ethyl 2-bromo-5-methylpyridine-3-carboxylate

5-oxo-5-o-tolyl-valeric acid ethyl ester