8-Hydroxy-2,3,6,7-tetramethyl-1,4a,5-triaza-phenanthren-4-one

N,N'-(2,6-吡啶二基)二(乙酰胺)

(Z)-3-氨基-2-甲基-2-丁烯酸乙酯

ethyl 2-anilinopropanoate

2-甲基-3-氧代丁酸叔丁酯