5-hydrazino-2-(trifluoromethyl)[1,2,4]triazolo[1,5-c]pyrimidine 、
Boc-(R)-3-氨基-4-(2,4,5-三氟苯基)丁酸 在
silica gel 、
甲醇 、
二氯甲烷 作用下,
以afforded the title compound as a light tan solid, mp 159-161° C的产率得到tert-butyl ((1R)-3-oxo-1-(2,4,5-trifluorobenzyl)-3-{2-[2-(trifluoromethyl)-[1,2,4]triazolo[1,5-c]pyrimidin-5-yl]hydrazino}propyl)carbamate