N-Cyano-N'-<2-<(5-methylimidazol-4-yl)methylthio>ethyl>-S-methylisothioharnstoff 、
1-(2-Aminoethyl)-2-pyridin-2-yl-2,3-dihydroquinazolin-4-one 在
吡啶 作用下,
反应 4.0h,
以38%的产率得到1-cyano-2-[2-[(5-methyl-1H-imidazol-4-yl)methylsulfanyl]ethyl]-3-[2-(4-oxo-2-pyridin-2-yl-2,3-dihydroquinazolin-1-yl)ethyl]guanidine