Water → 1-((4-Cyano-2-fluorophenyl)(2-ethoxy-6-oxocyclohex-1-enyl)methyl)-3-(3-(trifluoromethyl)phenyl)urea

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Reaction Steps

Triethyloxonium tetrafluoroborate (1.60 g, 8.42 mmol) is added to a solution of 1-((4-cyano-2-fluorophenyl)(2-hydroxy-6-oxocyclohex-1-enyl)methyl)-3-(3-(trifluoromethyl)phenyl)urea (intermediate 40 1.80 g, 4.02 mmol) and N,N-diisopropylethylamine (1.60 mL, 9.2 mmol) in dichloromethane (15 mL), and the mixture is stirred at room temperature for 20 min Water is added, and the phases are separated. The organic layer is dried over Na2SO4 and concentrated under reduced pressure. Yield: 1.82 g; ESI mass spectrum [M+H]+=476, Retention time HPLC: 1.11 min (Z018_S04).

Provenance & Evidence