75-44-5
光气
+
96-31-1
1,3-二甲基脲
→
~56%
13188-08-4
N-methyl-N-(methylcarbamoyl)carbamoyl chloride
463-72-9
N-甲氨基甲酰氯
36909-44-1
1,3-dimethyl-1,3-diazetidine-2,4-dione