(4,4-difluoro-piperidin-1-yl)-[5-(1-isopropyl-piperidin-4-yloxy)-1H-indol-2-yl]-methanone 、 5-(1-Tert-butoxycarbonyl-piperidin-4-yloxy)-1h-indole-2-carboxylic acid hydrochloride salt 、 [5-(1-cyclobutyl-piperidin-4-yloxy)-1-pyrimidin-5-yl-1H-indol-2-yl]-(4,4-difluoro-piperidin-1-yl)-methanone 在
4-[2-(4,4-difluoro-piperidine-1-carbonyl)-1H-indol-5-yloxy]-piperidine-1-carboxylic acid tert-butyl ester 作用下,
以The title compound was obtained in 59% yield as white solid的产率得到4-[2-(4,4-difluoro-piperidine-1-carbonyl)-1H-indol-5-yloxy]-piperidine-1-carboxylic acid tert-butyl ester