dimethyl 2-hydroxy-2-(2-methoxy-2-oxoethyl)-5-methyl-1-[(2-methylpropan-2-yl)oxycarbonylamino]-3H-pyrrole-3,4-dicarboxylate 在
copper(II) bis(trifluoromethanesulfonate) 作用下,
以
甲醇 为溶剂,
反应 0.5h,
以69%的产率得到1-tert-Butoxycarbonylamino-2-methoxycarbonylmethyl-5-methyl-1H-pyrrole-3,4-dicarboxylic acid dimethyl ester