(1S,6R,7S)-6-Benzo[1,3]dioxol-5-yl-3-methoxy-7-methyl-4-oxo-1-propyl-cyclohept-2-enecarboxylic acid 在
N-溴代丁二酰亚胺(NBS) 作用下,
以
氯仿 为溶剂,
反应 0.5h,
以94%的产率得到(1S,2R,3S,6S,9S)-3-Benzo[1,3]dioxol-5-yl-9-bromo-6-methoxy-2-methyl-1-propyl-7-oxa-bicyclo[4.2.1]nonane-5,8-dione