2-(3,5-dimethylisoxazol-4-yl)-7-(2-hydroxypropan-2-yl)-9H-carbazole-4-carboxamide 、
rel-((1R,25,45)-2-fluoro-7-oxabicyclo[2.2.1]heptan-2-yl)methyl 4-methylbenzenesulfonate 、
Dicaesio carbonate 在
desired product 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 24.42h,
以to give rel-2-(dimethyl-1,2-oxazol-4-yl)-9-{[(1R,2S,4S)-2-fluoro-7-oxabicyclo[2.2.1]heptan-2-yl]methyl}-7-(2-hydroxypropan-2-yl)-9H-carbazole-4-carboxamide (39.4 mg, 0.080 mmol, 48.5% yield)的产率得到rel-2-(dimethyl-1,2-oxazol-4-yl)-9-{[(1R,2S,4S)-2-fluoro-7-oxabicyclo[2.2.1]heptan-2-yl]methyl}-7-(2-hydroxypropan-2-yl)-9H-carbazole-4-carboxamide