42564-36-3
Ethyl 2-Oxo-2-(2-oxotetrahydrofuran-3-yl)acetate
+
57-13-6
尿素
→
~72%
91101-03-0
5-(2-oxooxolan-3-ylidene)imidazolidine-2,4-dione
91101-10-9
5-(2-oxooxolan-3-yl)imidazolidine-2,4-dione