s-butoxide 、
2-(2-trimethylsilylethoxymethyl)-4-chloro-5-(3-ethoxy-4-methoxybenzylamino)-6-sec-butoxy-3(2H)pyridazinone 、 2-(2-trimethylsilylethoxymethyl)-4-chloro-5-(3,4-dimethoxybenzylamino)-6-sec-butoxy-3(2H)pyridazinone 、 生成 2-(2-trimethylsilylethoxymethy)-4-chloro-5-(3-ethoxy-4-methoxybenzylamino)-6-methoxy-3(2H)pyridazinone