67-56-1
甲醇
+
25658-36-0
吡啶-2,4-二羧酸二甲酯
→
~9%
90275-71-1
dimethyl 5-methylpyridine-2,4-dicarboxylate
97988-77-7
dimethyl 5-methoxypyridine-2,4-dicarboxylate
118092-08-3
dimethyl 5-bromo-2,4-pyridinedicarboxylate