66946-86-9
dimethyl 2-(2,5-dichlorothiophen-1-ylidene)propanedioate
+
74497-02-2
1-aminobenzene
→
~95%
35757-92-7
dimethyl 2-anilinopropanedioate
868-26-8
溴丙二酸二甲酯
~62%