cyclopentyl N-[2-(3-bromophenyl)ethyl]-2-methylalaninate 、
cyclopentyl 2-ethyl-2-{[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzyl]amino}butanoate 生成 cyclopentyl 2-methyl-N-{2-[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]ethyl}alaninate