Water → 1,1-Dimethylethyl N-((6-phenyl-4-hydroxy-1,1-dimethyl-2-oxo-naphthalen-3-yl)carbonyl)glycinate

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Reaction Conditions

Reaction Steps

To 1,1-dimethylethyl N-((6-bromo-4-hydroxy-1,1-dimethyl-2-oxo-naphthalen-3-yl)carbonyl)glycinate (250 mg, 658 μmol, Example 40A-D), phenylboronic acid (120 mg, 987 μmol), Pd2(dba)3 (60.3 mg, 65.8 μmol), and X-Phos (62.8 mg, 132 μmol), were added dioxane (3291 μL) and K2CO3 in water (987 μL, 1975 μmol). The reaction was then heated at 110° C. for 6 hours. The resulting reaction mixture was cooled to ambient temperature, diluted with 100 mL of EtOAc, added to a separatory funnel, partitioned with NaHCO3 (saturated, aqueous), washed 2 times with 50 mL of NaHCO3 (saturated, aqueous), separated, dried over Na2SO4, and concentrated in vacuo to give the title compound (190 mg) as an amber amorphous solid after purification via prep-LC. MS (m/z)=444 (M+Na)+.

Provenance & Evidence