(4-amino-2-methyl-pyrimidin-5-yl)-acetic acid hydrazide

4-氨基-2-(羟基甲基)-5-嘧啶甲腈

ethyl 2-(4-chloro-2-methylpyrimidin-5-yl)acetate

4-氨基-2-甲基-5-(氨甲基)嘧啶