(S)-N1-(4-trifluoromethoxy-phenyl)-propane-1,2-diamine 、 (2R)-5,5-dimethyl-2-(2-morpholin-4-yl-2-oxoethyl)hexanoic acid 在
N,N-二异丙基乙胺 、 N-[(dimethylamino)-3-oxo-1H-1,2,3-triazolo[4,5-b]pyridin-1-yl-methylene]-N-methylmethanaminium hexafluorophosphate 作用下,
生成
5,5-dimethyl-2-(R)-(2-morpholin-4-yl-2-oxo-ethyl)-hexanoic acid [1-(S)-methyl-2-(4-trifluoromethoxy-phenylamino)-ethyl]-amide