1-甲基-3-氧代哌嗪

1,4-bis[2-(methylamino)ethylamino]anthracene-9,10-dione

甲基(2-(2,2,2-三氟乙酰氨基)乙基)氨基甲酸叔丁酯

1-甲基-2-咪唑啉酮

1-(1-methylimidazolidin-2-ylidene)propan-2-one