(-)-(4S)-2-(5'-benzyloxy-1',4'-dimethoxy-2'-naphthyl)-4-isopropyl-4,5-dihydrooxazole 在
1,1-二溴乙烷 、
magnesium 作用下,
以
乙腈 为溶剂,
反应 9.0h,
生成 (+)-(R,4S)-2-<5'-benzyloxy-1'-<4''-benzyloxy-2''-(1''',3'''-dioxolan-2'''-yl)phenyl>-4'-methoxy-2'-naphthyl>-4-isopropyl-3-methyl-4,5-dihydrooxazolium iodide