4-[[3-(Dimethylamino)propyl]amino]-6-ethylamino-2-methyl-5-nitropyridine-3-carboxylic acid ethyl ester 在
palladium on charcoal catalyst 、
氢气 作用下,
以
正丁醇 为溶剂,
生成 5-amino-4-[[3-(dimethylamino)propyl]amino]-6-ethyl-5-amino-2-methylpyridine-3-carboxylic acid ethyl ester