1,2-dichloro-3-hydroxy-8-oxo-5a-propyl-5a,6,7,8-tetrahydrodibenzofuran 以
R-[(1,2-dichloro-8-oxo-5a-propyl-5a,6,7,8-tetrahydrodibenzofuran-3-yl)oxy]acetonitrile 、 R-2-[(1,2-Dichloro-8-oxo-5a-propyl-5a,6,7,8-tetrahydrodibenzofuran-3-yl)oxy]ethanimid 为溶剂,
生成
S-[(1,2-dichloro-8-oxo-5a-propyl-5a,6,7,8-tetrahydrodibenzofuran-3-yl)oxy]ethanimidamide