The invention provides an industrial method for producing a spiroaminopyrrolidone derivative, which is an intermediate for producing a quinolone antibacterial agent.
The invention provides a method for producing a compound represented by formula (2):
(wherein n is an integer of 2 to 5; R
1
represents a (substituted) alkyl group or a (substituted) aryl group; and R
2
represents a (substituted) alkoxycarbonyl group, a (substituted) aralkyloxycarbonyl group, a (substituted) aliphatic acyl group, or a (substituted) aromatic acyl group), which includes treating a compound represented by formula (1):
(wherein n, R
1
, and R
2
are the same as defined above; and R
3
represents a hydrogen atom, a (substituted) alkyl group, or a (substituted) aralkyl group) under a hydrogen gas atmosphere in the presence of a metallic catalyst.
本发明提供了一种工业方法,用于生产螺环
氨基
吡咯烷衍
生物,该衍
生物是生产喹诺
酮类抗菌剂的中间体。本发明提供了一种生产由式(2)表示的化合物的方法:(其中n是2至5的整数;R1表示(取代)烷基或(取代)芳基;R2表示(取代)烷氧羰基,(取代)芳基烷氧羰基,(取代)脂肪酰基或(取代)芳香酰基),其包括在
金属催化剂存在下,在
氢气气氛下处理由式(1)表示的化合物:(其中n,R1和R2如上定义;R3表示氢原子,(取代)烷基或(取代)芳基烷基)。