、
ethyl-(4-ethyl-5-{4-fluoro-3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carbonyl]-phenyl}-pyridin-3-ylmethyl)-carbamic acid tert-butyl ester 、
一水合肼 以
二甲基亚砜 为溶剂,
以Analogous chromatography conditions afforded 47b (560 mg, 83%) as a yellow powder的产率得到ethyl-(4-ethyl-5-{3-[1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazol-2-yl]-1H-indazol-5-yl}-pyridin-3-ylmethyl)-carbamic acid tert-butyl ester