(3S,3'S)-3,3'-((2S,3S)-2,3-dihydroxybutane-1,4-diyl)bis(1,3-dimethylindolin-2-one)

(S)-3-(2-hydroxyethyl)-1,3-dimethyl-1,3-dihydroindol-2-one

(3S,3'S)-3,3'-(((4S,5S)-2,2-dimethyl-1,3-dioxolane-4,5-diyl)bis(methylene))bis(1,3-dimethylindolin-2-one)

[(S)-3-(2,2-Dimethoxy-ethyl)-1-methyl-2-oxo-2,3-dihydro-1H-indol-3-yl]-acetaldehyde

(R)-3-(hydroxymethyl)-1,3-dimethyloxindole