3-(7-pyridin-4-yl-2,3-dihydro-pyrazolo[5,1-b]thiazol-6-yl)-phenylamine 、
4-三氟甲基苯基异氰酸酯 在
氮气 、 crude product 、 silica gel 、
methanol-dichloromethane 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以to give 73 mg (86%) of 1-[3-(7-pyridin-4-yl-2,3-dihydro-pyrazolo[5,1-b]thiazol-6-yl)-phenyl]-3-(4-trifluoromethyl-phenyl)-urea as white powder的产率得到1-[3-(7-pyridin-4-yl-2,3-dihydro-pyrazolo[5,1-b]thiazol-6-yl)-phenyl]-3-(4-trifluoromethyl-phenyl)-urea