N,N-dimethyl-2-<<1(S)-phenylethyl>amino>acetamide 、
(S)-N-((1S,2R,3S)-1-Cyclohexylmethyl-2,3-dihydroxy-5-methyl-hexyl)-3-thiophen-2-ylmethyl-succinamic acid 在
(benzotriazo-1-yloxy)tris(dimethylamino)phosphonium hexafluorophosphate 、
N,N-二异丙基乙胺 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 5.5h,
以78%的产率得到(2S)-N-[(2S,3R,4S)-1-cyclohexyl-3,4-dihydroxy-6-methylheptan-2-yl]-N'-[2-(dimethylamino)-2-oxoethyl]-N'-[(1S)-1-phenylethyl]-2-(thiophen-2-ylmethyl)butanediamide