3-CHLORO-1'-(1,1-DIMETHYLETHYL)-5,7-DIHYDROSPIRO(6H-CYCLOPENTA(B)PYRIDINE-6,3'-(3H)PYRROLO(2,3-B)PYRIDIN)-2'(1'H)-ONE, (3'S)-
3-chloro-1'-(1,1-dimethylethyl)-5,7-dihydrospiro(6h-cyclopenta(b)pyridine-6,3'-(3h)pyrrolo(2,3-b)pyridin)-2'(1'h)-one, (3's)-