氰胺 、
1-methoxy-1-oxohex-5-yn-2-aminium chloride 以to produce 4-But-3-ynyl-1H-imidazol-2-ylamine hydrochloride (1.17 g, 48%) as a pale yellow oil (Olofson et al., Journal of Organic Chemistry 1997, 62, (23), 7918-7919)的产率得到4-(but-3-ynyl)-1H-imidazol-2-ylamine hydrochloride