(R)-2-amino-1-((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)-3-methylbutan-1-one hydrochloric acid salt 、
(2R)-7-oxo-6,8-diazaspiro[4.5]decane-2-carboxylic acid 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
三乙胺 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
生成 (2R,5R)-N-((R)-1-((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)-3-methyl-1-oxobutan-2-yl)-7-oxo-6,8-diazaspiro[4.5]decane-2-carboxamide 、 (2R,5S)-N-((R)-1-((S)-4-(4-chlorophenyl)-4-hydroxy-3,3-dimethylpiperidin-1-yl)-3-methyl-1-oxobutan-2-yl)-7-oxo-6,8-diazaspiro[4.5]decane-2-carboxamide