Acetic acid (S)-1-((3aR,4R,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-but-3-ynyl ester 在
N-溴代丁二酰亚胺(NBS) 、
silver(I) acetate 作用下,
以
丙酮 为溶剂,
以85%的产率得到Acetic acid (S)-4-bromo-1-((3aR,4R,6R,6aR)-6-methoxy-2,2-dimethyl-tetrahydro-furo[3,4-d][1,3]dioxol-4-yl)-but-3-ynyl ester