4-(2-Methoxy-ethyl)-1-(2-methyl-propane-1-sulfonyl)-piperidine-4-carboxylic acid ethyl ester 、
二甲基氯化铝 、
对三氟甲氧基苯胺 以
正庚烷 为溶剂,
以to give the desired 8-(2-methyl-propane-1-sulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diaza-spiro[4.5]decan-1-one (0.134 g) as an off-white solid的产率得到8-(2-methyl-propane-1-sulfonyl)-2-(4-trifluoromethoxy-phenyl)-2,8-diazaspiro[4.5]decan-1-one