127285-75-0
8-cyano-3-ethoxycarbonyl-1,4-dihydro-4-oxoquinolone
→
~82%
77173-67-2
4-氯-8-氰基喹啉-3-甲酸乙酯
1885-29-6
2-氨基苯甲腈
87-13-8
乙氧基甲叉丙二酸二乙酯