4-indol-1-yl-piperidine-1-carboxylic acid ethyl ester

N-叔丁氧羰基-4-哌啶酮

吲哚啉

4-吲哚啉-1-哌啶-1-羧酸叔丁酯

4-苯胺-1-甲基哌啶