吗啉-4-甲脒

2-(4-吗啉基)-4,6-嘧啶二胺

5-(2-羟基乙基)-2-吗啉嘧啶-4,6-二醇

4-(4-methylsulfanyl-6-thiophen-2-ylpyrimidin-2-yl)morpholine

4-(4-methylsulfonyl-6-thiophen-2-ylpyrimidin-2-yl)morpholine