77-24-7
乙基异戊基丙二酸二乙酯
+
598-50-5
N-甲基脲
→
6270-45-7
5-Ethyl-5-isopentyl-1-methylbarbituric acid
399556-78-6
ethyl 2-cyano-2-ethyl-5-methylhexanoate
107-82-4
1-溴-3-甲基丁烷