吲哚-2,3-二酮

1-allyl-4,6-dibromo-3-hydroxyindolin-2-one

1-allyl-4,6-dibromo-3-(tert-butyldimethylsilyloxy)indolin-2-one

5-aminoisatin ketal

5'-amino-4',6'-dibromo-5,5-dimethylspiro[[1,3]dioxane-2,3'-indolin]-2'-one