4-hydroxy-6-[2-(3-hydroxy-phenyl)-ethyl]-6-phenyl-5,6-dihydro-pyran-2-one 、
toluene-4-thiosulfonic acid S-(2-tert-butyl-4-hydroxymethyl-5-methyl-phenyl) ester 、
potassium carbonate 在
3-(2-tert-Butyl-4-hydroxymethyl-5-methyl-phenylsulfanyl)-4-hydroxy-6-[2-(3-hydroxy-phenyl)-ethyl]-6-phenyl-5,6-dihydro-pyran-2-one 、
乙酸乙酯 、
magnesium sulfate 、 silica gel 、 Chloroform methanol n-hexane 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以gave the title compound, m.p. 132-135° C的产率得到3-(2-tert-Butyl-4-hydroxymethyl-5-methyl-phenylsulfanyl)-4-hydroxy-6-[2-(3-hydroxy-phenyl)-ethyl]-6-phenyl-5,6-dihydro-pyran-2-one