3,6-dichloro-pyridazine-4-carboxylic acid {2-[3-(3-fluoro-benzyl)-ureido]-thiazol-4-ylmethyl}-methyl-amide 、
溶剂黄146 在
resultant mixture 、
3-chloro-6-hydroxy-pyridazine-4-carboxylic acid {2-[3-(3-fluoro-benzyl)-ureido]-thiazol-4-ylmethyl}-methyl-amide 作用下,
反应 2.0h,
以About 15 mg of the desired product-3-chloro-6-hydroxypyridazine-4-carboxylic acid {2-[3-(3-fluoro-benzyl)-ureido]-thiazol-4-ylmethyl}-methyl-amide was obtained的产率得到3-chloro-6-hydroxy-pyridazine-4-carboxylic acid {2-[3-(3-fluoro-benzyl)-ureido]-thiazol-4-ylmethyl}-methyl-amide