Chemical and Enzymatic Synthesis of 2-(2-Carbamoylethyl)- and 2-(2-Carboxyethyl)aziridines and Their Conversion into δ-Lactams and γ-Lactones
作者:Karel Vervisch、Matthias D’hooghe、Floris P. J. T. Rutjes、Norbert De Kimpe
DOI:10.1021/ol202888j
日期:2012.1.6
nitrile hydratase afforded the corresponding 2-(2-carbamoylethyl)aziridines, which underwent rearrangement into 5-hydroxypiperidin-2-ones upon heating under microwave irradiation. In addition, treatment of 2-(2-cyanoethyl)aziridines with a nitrilase selectively afforded 5-hydroxypiperidin-2-ones in good yields. On the other hand, chemical hydrolysis of 2-(2-cyanoethyl)aziridines using KOH in EtOH/H2O
用腈水合酶处理1-芳基甲基-2-(2-氰基乙基)氮丙啶,得到相应的2-(2-氨基甲酰基乙基)氮丙啶,将其在微波辐射下加热后重排成5-羟基哌啶-2-酮。另外,用腈水解酶处理2-(2-氰基乙基)氮丙啶选择性地以良好的产率提供了5-羟基哌啶-2-酮。另一方面,使用KOH在EtOH / H 2 O中化学水解2-(2-氰基乙基)氮丙啶类化合物提供了相应的3-(氮丙啶-2-基)丙酸钾,在用乙酸酸化后,其平滑地重排为4-(氨基甲基)丁内酯。