1-[2-(1H-indol-3-yl)ethyl]-3,3-dimethylpyridine-2,4-dione

3,3-dimethyl-2,4-dioxo-1,2,3,4,6,7,12,12b-oktahydroindolo<2,3-a>quinolizine

色胺

2,2-二甲基-3-氧代丁酸乙酯

ethyl(Z)-5-[2-(3-indolyl)-ethylamino]-2,2-dimethyl-3-oxo-4-pentenoate