ethyl 2-(7-(N-hydroxycarbamimidoyl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate 、
6-(diethylamino)-4-(trifluoromethyl)picolinoyl chloride 在
N,N-二甲基乙酰胺 、 silica gel 作用下,
以
1,4-二氧六环 为溶剂,
反应 1.5h,
以to provide the title compound as a yellow solid (0.032 g)的产率得到ethyl 2-(7-(5-(6-(diethylamino)-4-(trifluoromethyl)pyridin-2-yl)-1,2,4-oxadiazol-3-yl)-1,2,3,4-tetrahydrocyclopenta[b]indol-3-yl)acetate