1-bromo-2-isopropyloxy-6-methoxy-4-methylbenzene 、 (-)-(4S)-4-isopropyl-2-(2,3,5-trimethoxyphenyl)-4,5-dihydrooxazole 在
magnesium 作用下,
以
四氢呋喃 为溶剂,
反应 12.0h,
生成 (Sa,4S)-4-isopropyl-2-(2'-isopropyloxy-4,6,6'-trimethoxy-4'-methyl-1,1'-biphenyl-2-yl)-4,5-dihydroxazole 、 (Ra,4S)-4-isopropyl-2-(2'-isopropyloxy-4,6,6'-trimethoxy-4'-methyl-1,1'-biphenyl-2-yl)-4,5-dihydroxazole