75-44-5
光气
+
3196-73-4
3-氨基丙酸甲酯盐酸盐
→
50835-77-3
3-异氰酰基丙酸甲酯
1490-25-1
丁二酸单甲酯酰氯
3729-19-9
3-isocyanatopropanoyl chloride
54755-77-0
methyl 3-(benzyloxycarbonyl)propanoate