2-烯丙基-1-boc-2-吡咯烷羧酸

(R)-2-烯丙基-1-boc-2-吡咯烷羧酸

2-Methyl-2-propanyl (5R)-8-hydroxy-6-oxo-7-oxa-1-azaspiro[4.4]non ane-1-carboxylate

2-Methyl-2-propanyl (5R)-6-oxo-7-[(1R)-1-phenylethyl]-1,7-diazasp iro[4.4]nonane-1-carboxylate

2-Methyl-2-propanyl (5R)-6-oxo-7-[(1S)-1-phenylethyl]-1,7-diazasp iro[4.4]nonane-1-carboxylate