2-(2-hydroxy-4-methylphenyl)-6-methylheptane-2,6-diol

5-叔丁氧基-5-氧代戊酸

5-(3-azidopropylamino)-5-oxopentanoic acid

4-[(4-nitrophenyl)methoxycarbonylamino]butanoic acid

methyl 5-(dodecylamino)-5-oxopentanoate