A process for producing optically active succinimide derivatives as key intermediates of (3R)-2'-(4-bromo-2-fluorobenzyl)spiropyrrolidine-3,4'(1'H)-pyrrolo[1,2-a]pyrazine}-1',2,3',5(2'H)-tetraone, which comprises the following reaction steps.
                            一种生产光学活性琥珀
酰亚胺衍
生物作为(3R)-2'-(4-
溴-2-
氟苄基)螺
吡咯烷-3,4'(1'H)-
吡咯并[1,2-a]吡嗪}-1',2,3',5(2'H)-四酮的关键中间体的工艺,包括以下反应步骤。