2-[(3aR,5S,7aS)-2,2,7a-trimethyl-4,5-dihydro-3aH-1,3-benzodioxol-5-yl]propane-1,3-diol 在
N-溴代丁二酰亚胺(NBS) 作用下,
以
四氢呋喃 为溶剂,
以95%的产率得到[(3aR,4R,4aS,7S,7aR,8aR)-4-bromo-2,2,3a-trimethyl-4a,6,7,7a,8,8a-hexahydro-4H-[1,3]dioxolo[4,5-f][1]benzofuran-7-yl]methanol