2-ethoxy-4,5-dihydro-1H-imidazole

2-ethoxy-1-methyl-4,5-dihydroimidazole

2-(4-甲氧基苯基)-1-咪唑啉

吡啶-2-基氨基甲酸乙酯

Diethyl(2-pyridylimido)carbonat