Water → 2-(4-(4-Cyanophenyl)-2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-6,7-dihydro-1H-cyclopenta[d]pyrimidin-3(2H,4H,5H)-yl)propanoic acid

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Reaction Steps

A solution of methyl 2-(4-(4-cyanophenyl)-2,5-dioxo-1-(3-(trifluoromethyl)phenyl)-6,7-dihydro-1H-cyclopenta[d]pyrimidin-3(2H,4H,5H)-yl)propanoate (intermediate 27, 125 mg, 0.26 mmol) in 1,4-dioxane (3 mL) is treated with aqueous lithium hydroxide (2.0 M, 390 μL, 0.78 mmol), and the mixture is stirred at room temperature over night. Water is added, and the mixture is extracted with dichloromethane. The aqueous phase is acidified with 1M aqueous hydrogen chloride and extracted with dichloromethane. The combined organic layers are dried over Na2SO4 and concentrated under reduced pressure. Yield: 91 mg; ESI mass spectrum: [M+H]+=470; Retention time HPLC: 0.85 min (Z018_S04).

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