((1R,2S,7S,9S,11S)-11-tert-Butoxy-1,5-dimethyl-12-methylene-8-oxa-tricyclo[7.2.1.02,7]dodec-5-en-2-yl)-methanol 在
N-溴代丁二酰亚胺(NBS) 作用下,
以
丙酮 为溶剂,
反应 0.08h,
以100%的产率得到rac-(2R,4R,5S,5aR,8S,9S,9aS)-9-bromo-4-(tert-butoxy)-5,8-dimethyl-12-methyleneoctahydro-6H-8,5a-(epoxymethano)-2,5-methanobenzo[b]oxepine