1-{4-[5-(6-amino-5-trifluoromethyl-pyridin-3-yl)-imidazo[2,1-b][1,3,4]thiadiazol-2-ylamino]-trans-cyclohexyl}-3-ethyl-urea 在
N-氯代丁二酰亚胺 作用下,
以
乙腈 为溶剂,
反应 0.17h,
以38%的产率得到1-{4-[5-(6-amino-5-trifluoromethyl-pyridin-3-yl)-6-chloro-imidazo[2,1-b][1,3,4]thiadiazol-2-ylamino]-trans-cyclohexyl}-3-ethyl-urea