2-methyl-1-oxy-2-phenyl-2H-indole-3,7-dione

2-methyl-2-phenyl-1,2-dihydro-3H-indol-3-one

2-methyl-1-oxido-2-phenylindol-1-ium-3,5-dione

1-methoxy-2-methyl-2-phenylindolin-3-one

5-chloro-2-methyl-2-phenyl-1,2-dihydro-indol-3-one