75633-18-0
1-ethoxycarbonyl-5-methoxy-1H-1,3-diazepine
→
18804-91-6
formyl-carbamic acid ethyl ester
+
91024-65-6
1,5-dihydro-5-hydroxy-3-methoxy-2H-Pyrrol-2-one
91024-66-7
2-丙烯酸,3-[(乙酯基<乙氧羰基>)氨基]-, 甲基酯
91024-67-8
methyl 3-[(2-ethoxy-2-oxoacetyl)amino]prop-2-enoate