Pyrazinamidoguanidine 、
(3.5-Diamino-6-chlorpyrazinamido)-guanidin 、 、
异硫氰酸氯代乙酯 以yields 3,5-diamino-6-chloro-N-{[(2-thiazolinylamino)iminomethyl]-amino}-2-pyrazinecarboxamide的产率得到3,5-diamino-6-chloro-N-[(E)-[2-(4,5-dihydro-1,3-thiazol-2-yl)hydrazinyl]methylideneamino]pyrazine-2-carboxamide