反应详情

The procedure of Example 13 is repeated, starting with 3.21 g. of 3-hydroxymethylene-6,7-dimethoxy-2-methyl-4-oxo-1,2,3,4-tetrahydro-1-quinoline carboxylic acid, ethyl ester and 890 mg. of methoxyethylamine in 30 ml., to give 1.5 g. of the crude product as a yellow oil.

1. custom, to give 1.5 g