4-chloro-N-(cyclobutylmethyl)-N-(2-fluoro-4-hydroxybenzyl)-1H-pyrrole-2-carboxamide 、
(R)-N-Boc-α-乙基丙氨酸 、
N,N'-二环己基碳二亚胺 、
吡啶 以
乙酸乙酯 为溶剂,
反应 16.0h,
以(0-30% methanol/DCM) (S)-4-((3-chloro-N-(cyclobutylmethyl)-1H-pyrazole-5-carboxamido)methyl)-3-fluorophenyl 2-(Boc-amino)-2-methylbutanoate was obtained (0.030 g, 0.056 mmol, 47% yield)的产率得到(S)-4-((3-chloro-N-(cyclobutylmethyl)-1H-pyrazole-5-carboxamido)methyl)-3-fluorophenyl 2-(Boc-amino)-2-methylbutanoate