141-82-2
丙二酸
+
3934-87-0
3,4-二羟基-5-甲氧基苯甲醛
→
~64%
110642-42-7
3-(3,4-dihydroxy-5-methoxyphenyl)prop-2-enoic acid
121-33-5
香草醛
2973-76-4
5-溴香兰素