Water → 5-Ethyl-7-methyl-4-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)-1-tosyl-1H-indole

Participants

Reaction Conditions

Reaction Steps

To a suspension of (±)-5-chloro-7-methyl-4-(((tetrahydro-2H-pyran-2-yl)oxy)methyl)-1-tosyl-1H-indole (Example 47-D) (200 mg, 0.46 mmol), cesium carbonate (601 mg, 1.8 mmol), potassium ethylrifluoroborate (125 mg, 0.92 mmol) in dioxane (3 mL)/H2O (0.3 mL) Pd(OAc)2 (21 mg, 0.092 mmol) and Ru-Phos (CAS 787618-22-8, 86 mg, 0.18 mmol) were added and then the mixture was stirred at 90° C. for 15 h. The reaction mixture was cooled to room temperature, and diluted with CH2Cl2. The organic phase was separated and washed with H2O, and brine, dried over Na2SO4, and then filtered. Concentration of the filtrate gave a residue that was purified by SiO2 column chromatography (heptane/EtOAc=1/0 to 3/2) to give the title compound. 1H NMR (400 MHz, ACETONITRILE-d3) δ 7.75 (d, J=3.79 Hz, 1H), 7.57 (d, J=8.34 Hz, 2H), 7.31 (d, J=8.34 Hz, 2H), 6.95 (s, 1H), 6.91 (d, J=3.79 Hz, 1H), 4.90 (d, J=11.24 Hz, 1H), 4.65 (d, J=11.24 Hz, 1H), 4.61-4.64 (m, 1H), 3.79-3.92 (m, 1H), 3.41-3.54 (m, 1H), 2.71 (q, J=7.58 Hz, 2H), 2.53 (s, 3H), 2.35 (s, 3H), 1.56-1.75 (m, 2H), 1.38-1.56 (m, 4H), 1.16 (t, J=7.58 Hz, 3H).

Provenance & Evidence