Synonyms: 1,3-dihydrospiro[imidazo[4,5-b]pyridine-2,3'-indol]-2'(1'h)-one;1,3-Dihydrospiro(2H-imidazo(4,5-b)pyridine-2,3'-(3H)indol)-2'(1'H)-one;Spiro(2H-imidazo(4,5-b)pyridine-2,3'-(3H)indol)-2'(1'H)-one, 1,3-dihydro-;40114-91-8;NSC165899;AC1L40LK;AC1Q6P08;KST-1B4201;AR-1B6930;NSC-165899;LS-146152;spiro[1,3-dihydroimidazo[4,5-b]pyridine-2,3'-1H-indole]-2'-one