4,5-dimethoxy-2-methylsulphanyl-pyrimidine 、 4,5-dimethoxy-2-methylsulphonyl-pyrimidine 、 tert-butyl (3R,4s,5S)-4-[4-(3-benzyloxy-propoxy)-phenyl]-3,5-bis-hydroxymethyl-piperidine-1-carboxylate 以
N-甲基乙酰胺 、 ice-water 、 mineral oil 为溶剂,
生成
tert-butyl (3R,4s,5S)-4-[4-(3-benzyloxy-propoxy)-phenyl]-3,5-bis-(4,5-dimethoxy-pyrimidin-2-yloxymethyl)-piperidine-1-carboxylate