Potassium Carbonate → HCID 9845105, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of 1,1,3-trimethyl-2,3,6b,7,8,9,10,10a-octahydro-1H-pyrido[3′,4′:4,5]pyrrolo[1,2,3-de]quinoxaline (from Example 283) (82 mg, 0.32 mmol) in dioxane (10 mL) at rt was added 4-chloro-1-(4-fluorophenyl)butan-1-one (83 mg, 0.42 mmol), K2CO3 (100 mg), KI (30 mg) and stirred at 25° C. for 24 hours. The solution was diluted with water (30 mL) and extracted with EtOAc (2×30 mL). The combined extracts were dried over magnesium sulfate, concentrated, and purified by flash chromatography to afford the title compound (58 mg, 43%). MS [M+H]+ 422. 1H NMR (CDCl3, 300 MHz): δ 8.01 (m, 2H), 7.15 (t, 2H, J=7.7 Hz), 6.65 (t, 1H, J=7.7 Hz), 6.51 (d, 1H, J=7.0 Hz), 6.43 (d, 1H, J=7.0 Hz), 3.63 (m, 1H), 3.25 (d, 1H, J=11 Hz), 3.09 (m, 2H), 2.89 (s, 3H), 2.63 (m, 2H), 2.25 (m, 2H), 2.17 (m, 2H), 1.31 (s, 3H), 1.12 (s, 3H) ppm. This racemate was then separated into its corresponding enantiomers by HPLC utilizing a Chiralcel AD column with 50% Ethanol/Methanol solvent system.

Provenance & Evidence