反应详情

A procedure similar to that described in Preparation 8 was repeated, except that 2.0 g of N-t-butoxycarbonyl-N-methyl-4-methoxy-2-nitroaniline (prepared as described in Preparation 23) and 30 ml of a 4N solution of hydrogen chloride in 1,4-dioxane were used, to give 1.17 g of the title compound having an Rf value=0.62 (on thin layer chromatography on silica gel; developing solvent: a 1:5 by volume mixture of ethyl acetate and hexane).

1. customA procedure similar to that described in Preparation 8