(1R)-1-phenylethyl (1-pyridin-2-yl-1H-imidazol-4-yl)acetate 、 di-tert-butyl [(3R)-3-methyl-4-oxobutyl]imidodicarbonate 在
lithium hexamethyldisilazane 作用下,
以
四氢呋喃 为溶剂,
反应 8.34h,
以58 mg的产率得到(1R)-1-phenylethyl (2Z,4R)-6-[bis(tert-butoxycarbonyl)amino]-4-methyl-2-[1-(pyridin-2-yl)-1H-imidazol-4-yl]hex-2-enoate