tert-butyl (4aS,7S)-1-amino-3-methyl-7-[(2S)-2-methylsulfonyloxyundecyl]-4a,5,6,7-tetrahydro-2H-pyrrolo[1,2-c]pyrimidin-8-ium-4-carboxylate;acetate 在
N-溴代丁二酰亚胺(NBS) 、
三乙胺 作用下,
以
氯仿 为溶剂,
反应 73.0h,
生成
tert-butyl (1S,4S,5R,6S,10R)-5-bromo-6-methoxy-6-methyl-10-nonyl-7,9-diaza-12-azoniatricyclo[6.3.1.04,12]dodec-8(12)-ene-5-carboxylate