boron trichloride-dimethyl sulfide 、 (3aR,4R,5R,6R,7aS)-2-(dimethylamino)-4,5-bisbenzyloxy-6-(benzyloxyoxymethyl)-3a,4,5,6,7,7a-hexahydrobenzo[d]thiazole 在
silica gel 、
氨 、
methanol-dichloromethane 作用下,
以afforded the product as an off-white solid (0.048 g, 36%)的产率得到(3aR,4R,5R,6R,7aS)-2-(dimethylamino)-6-(hydroxymethyl)-3a,4,5,6,7,7a-hexahydrobenzo[d]thiazole-4,5-diol