3-(4-methoxyphenyl)spiro[1,3-thiazolidine-2,3'-1H-indole]-2',4-dione

2-苯基-4-喹啉甲酰氯

6-硝基水杨酸

1-ethyl-3H-indol-2-one

3,3'-二羟基-1,1',3,3'-四氢-2H,2'H-3,3'-联吲哚-2,2'-二酮