反应详情

To a solution of 6-(3-chlorophenyl)-5-((4-chlorophenyl)(hydroxy)methyl)-1-methyl-3-(3-((tetra hydro-2H-pyran-2-yl)oxy)propyl)thieno[2,3-d]pyrimidine-2,4(1H,3H)-dione (See Compound 4, Step 2, 50 mg, 0.078 mmol) in TFA (1 mL) was added triethylsilane (0.5 mL). The reaction was stirred at RT for 2 h then diluted with DCM (5 mL) and water (5 mL). The organic layer was dried over Na2SO4 and concentrated to give 3-(5-(4-chlorobenzyl)-6-(3-chlorophenyl)-1-methyl-2,4-dioxo-1,2-dihydro thieno[2,3-d]pyrimidin-3(4H)-yl)propyl 2,2,2-trifluoroacetate (40 mg, 80.5% yield) as an oil. LCMS: MH+ 571 and TR=2.327 min. Used without further purification.

1. dry with materialThe organic layer was dried over Na2SO4
2. concentrationconcentrated