N-(2-fluoro-5-nitrophenylmethyl)iminodicarboxylic acid di-tert-butyl ester 、
N-乙基甲基胺 以the same procedure of Example 264 gave the titled compound (yield, 42%)的产率得到N-(2-(N-ethyl-N-methylamino)-5-nitrophenylmethyl)iminodicarboxylic acid di-t-butyl ester