反应详情

The title compound was prepared from methyl 6-(3-chloro-4-fluorobenzyl)-4-methoxy-2-methyl-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylate in a manner similar to that described in Example 12, Steps 12, 13 and 14, using diethyl amine in place of dimethylamine in the step corresponding to Step 13 of Example 12.