Optically active or racemic diazabicyclooctane derivatives of formula
wherein A represents a C6-C14 aryl group or a C1-C4 alkyl or alkoxy group- or halogen-substituted C6-C14 aryl group and R3 represents a C1-C4 alkyl group. These compounds can be prepared by reacting a glyoxylate ester or glyoxylate ester hemiacetal with a 2(-N-substituted aminomethyl)pyrrolidine, and can be used to prepare optically active and racemic α-hydroxyaldehydes which are important intermediates in the preparation of pharmaceuticals and agricultural chemicals.
式中 A 代表 C6-C14 芳基或 C1-C4 烷基或烷氧基或卤素取代的 C6-C14 芳基,R3 代表 C1-C4 烷基的具有光学活性或外消旋的二氮杂双
环辛烷衍
生物。 这些化合物可通过
乙醛酸酯或
乙醛酸酯
半缩醛与 2(-N-取代的
氨基甲基)
吡咯烷反应制备,并可用于制备具有光学活性和外消旋的 α-羟基醛,它们是制备药物和农药的重要中间体。