Potassium Phosphate, Tribasic → HCID 59454948, compound

Participants

Reaction Conditions

Reaction Steps

2-(3,4-dihydro-8-methyl-1H-pyrido[4,3-b]indol-2(5H)-yl)ethanol (232 mg, 1 mmol) was dissolved in DMF (3 mL) and potassium phosphate (424 mg, 2 mmol), copper(I) iodide (19 mg, 0.1 mmol) and L-proline (23 mg, 0.2 mmol) was added in to it. 4-(1-bromoprop-1-en-2-yl)pyridine (294 mg, 1.5 mmol) was dissolved in DMF (2 mL) and added dropwise. Nitrogen was purged for 2 min. and the reaction mixture was heated at 85° C. overnight (prolonged heating was required in some cases). DMF was evaporated and water was added. The precipitate obtained was filtered and purified by silica gel chromatography (100-200 mesh) using 0-8% MeOH:DCM as eluent. The compound was further purified through reverse phase purification. Yield: 115 mg. 1H NMR (CD3OD, oxalate salt) δ (ppm): 8.70 (d, 2H), 7.68 (d, 2H), 7.38 (m, 2H), 7.10 (m, 2H), 4.60 (m, 2H), 4.0 (m, 2H), 3.78 (m, 2H), 3.50 (m, 2H), 3.15 (m, 2H), 2.42 (s, 3H), 2.05 (s, 3H).

Provenance & Evidence