5446-02-6
4-甲氧基水杨酸甲酯
+
96-32-2
溴乙酸甲酯
→
~94%
33562-12-8
methyl 4-methoxy-2-(2-methoxy-2-oxoethoxy)benzoate
186581-53-3
重氮甲烷
52116-39-9
2-(carboxymethoxy)-4-methoxybenzoic acid