Sodium Carbonate → (S)-6a-ethyl-5-methyl-2-(2-(3-(pyridin-3-yl)phenyl)-1H-imidazol-1-yl)-6a,7,8,9-tetrahydropyrrolo[2,1-h]pteridin-6(5H)-one

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Reaction Steps

(S)-2-(2-(3-bromophenyl)-1H-imidazol-1-yl)-6a-ethyl-5-methyl-6a,7,8,9-tetrahydropyrrolo[2,1-h]pteridin-6(5H)-one (Example 252, 0.118 mmol, 0.053 g) was added to a solution of 3-pyridyl boronic acid (0.593 mmol, 0.072 g), Na2CO3 (0.593 mmol, 0.063 g), and Pd(PPh3)4 (0.029 mmol, 0.034 g) in 1 mL of DME and 0.5 mL of H2O. The reaction mixture was microwaved for 40 minutes at 135° C. The reaction mixture was diluted with 15 mL of DCM, washed with 5 mL of H2O, dried with Na2SO4, filtered and concentrated. The resulting residue was purified by reverse phase HPLC to give the title compound as a white solid (0.020 g, 38%); 1H NMR (400 MHz, CDCl3) δ: 9.18 (s, 1H), 8.77 (m, 1H), 8.70 (m, 1H), 8.22 (s, 1H), 7.93 (s, 1H), 7.87 (m, 1H), 7.82 (m, 1H), 7.73 (s, 1H), 7.56 (m, 3H), 3.38 (m, 3H), 3.29 (m, 1H), 2.24 (m, 2H), 2.00 (m, 2H), 1.77 (m, 1H), 1.62 (m, 1H), 0.78 (t, J=7.4 Hz, 3H); LCMS: 452.3 m/z (M+H)+; ret. Time: 3.758 min (Analytical Method C).

Provenance & Evidence