1: 2,4-dinitro-6-bromo-aniline With sulfuric acid; sodium nitrite 2: 3-(diallylamino)-4-methoxyacetanilide Further stages.;

1: nitrosyl-sulphuric acid; 2,4-dinitro-6-bromo-aniline in propionic acid; sulfuric acid; acetic acid T=5 - 10°C; 1 h; 2: 3-(diallylamino)-4-methoxyacetanilide in H2O; sulfamic acid; acetic acid T=0 - 5°C; pH=4.0; 2 h;