872-50-4
N-甲基吡咯烷酮
→
~94%
33693-57-1
3-溴-1-甲基吡咯烷-2-酮
132996-62-4
2,4-dibromo-N-methylbutyramide
~81%
82820-87-9
2,4-二溴丁酰氯
614754-14-2
2-Pyrrolidinone,3-(acetyloxy)-1-methyl-(9CI)