25774-35-0
cyclobutanecarbonyl cyclobutanecarboxylate
+
513-86-0
3-羟基-2-丁酮
13510-29-7
Cyanamide, butyl-
→
57068-38-9
N-butyl-N-(4,5-dimethyl-1,3-oxazol-2-yl)cyclobutanecarboxamide