反应详情

2-Methyl-3-ethoxycarbonyloxy-4-ethoxycarbonyloxymethyl-5-chloromethylpyridine is converted to the corresponding ethyl xanthogenate and reduced in accordance with the procedure of Example 19 Step B to give 2-methyl-3-ethoxycarbonyloxy-4-ethoxycarbonyloxymethyl-5-mercaptomethylpyridine.