[2-(4,4-difluoro-piperidine-1-carbonyl)-1H-indol-5-yl]-((S)-2-pyrrolidin-1-ylmethyl-pyrrolidin-1-yl)-methanone 、
sodium;hydride 、
(2-溴乙氧基)-特丁基二甲基硅烷 在
[1-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-5-((S)-2-pyrrolidin-1-ylmethyl-pyrrolidine-1-carbonyl)-1H-indol-2-yl]-(4,4-difluoro-piperidin-1-yl)-methanone 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
以to give the desired product as a colorless oil (44%)的产率得到[1-[2-(tert-butyl-dimethyl-silanyloxy)-ethyl]-5-((S)-2-pyrrolidin-1-ylmethyl-pyrrolidine-1-carbonyl)-1H-indol-2-yl]-(4,4-difluoro-piperidin-1-yl)-methanone