Disclosed is a 2-phenyl-2-(2'-piperidinylidene)acetate derivative of formula(1) suitably used for a raw material of a 2-phenyl-2-(2'-piperidinyl)acetate derivative of formula(3)and a process for manufacturing the same. Also disclosed is a process for manufacturing an optically active 2-phenyl-2-(2'-piperidinyl)acetate derivative which is a major intermediate for an antidepressant. The 2-phenyl-2-(2'-piperidinylidene)acetate derivative is manufactured by cyclizing a 7-(N-substituted amino)-3-oxo-2-heptanoate derivative of formula(2). The optically active 2-phenyl-2-(2'-piperidinyl)acetate derivative is manufactured by asymmetrically hydrogenating the 2-phenyl-2-(2'-piperidinylidene)acetate derivative in the presence of a complex of a Group VIII transition metal or an acid.
本发明公开了一种式(1)的 2-苯基-2-(2'-
哌啶亚基)
乙酸酯衍
生物,该衍
生物适合用作式(3)的 2-苯基-2-(2'-
哌啶亚基)
乙酸酯衍
生物的原料,并公开了制造该衍
生物的工艺。还公开了一种光学活性 2-苯基-2-(2'-
哌啶基)
乙酸酯衍
生物的制造工艺,该衍
生物是一种抗抑郁剂的主要中间体。2-苯基-2-(2'-
哌啶亚基)
乙酸酯衍
生物是通过环化式(2)的 7-(N-取代
氨基)-3-氧代-2-
庚酸酯衍
生物制造的。光学活性 2-苯基-2-(2'-
哌啶基)
乙酸酯衍
生物是在第八族过渡
金属或酸的络合物存在下,通过不对称氢化 2-苯基-2-(2'-
哌啶基)
乙酸酯衍
生物制得的。