(S)-2'-氧代-1',2',5,7-四氢螺[环戊[B]吡啶-6,3'-吡咯并[2,3-B]吡啶] -3-羧酸

(S)-2'-Oxo-1',2',5,7-Tetrahydrospiro[Cyclopenta[B]Pyridine-6,3'-Pyrrolo[2,3-B]Pyridine]-3-Carboxylicacid