Synonyms: Spiro[pyrrolidine-3,4'(1'H)-pyrrolo[1,2-a]pyrazine]-1',2,3',5(2'H)-tetrone,2'-[(4-bromo-2-fluorophenyl)methyl]-, (+)-;Spiro[pyrrolidine-3,4'(1'H)-pyrrolo[1,2-a]pyrazine]-1',2,3',5(2'H)-tetrone,2'-[(4-bromo-2-fluorophenyl)methyl]-, (3'S)- (9CI); SX 3202