6-(2-cyclopentyl-2-hydroxy-4-(4-methoxy-3-methylphenyl)butyl)-2,2-dimethyl-4H-1,3-dioxin-4-one 在
dimethyl sulfide borane 、
potassium carbonate 作用下,
以
甲醇 为溶剂,
生成 6-cyclopentyl-3-(5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidin-2-ylmethyl)-4-hydroxy-6-[2-(4-methoxy-3-methyl-phenyl)-ethyl]-5,6-dihydro-pyran-2-one