Potassium Carbonate → 2-[5-(3-{3-[(4-Chloro-benzyl)-isobutyl-amino]-pyrrolidin-1-yl}-propylidene)-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl]-propan-2-ol

Participants

Reaction Conditions

Reaction Steps

To a solution of (4-chloro-benzyl)-isobutyl-pyrrolidin-3-yl-amine (0.16 g, 0.6 mmol) in acetonitrile:water (4:1) was added potassium carbonate (0.8 mmol) and (E)-2-[5-(3-bromo-propylidene)-5,11-dihydro-10-oxa-1-aza-dibenzo[a,d]cyclohepten-7-yl]-propan-2-ol (0.15 g, 0.4 mmol) and the resulting mixture was stirred at 50° C. for 24 h. The reaction was concentrated, diluted with ethyl acetate, and dried over sodium sulfate. The crude product was purified by flash chromatography using ethyl acetate/methanol (5%). 1H-NMR (CDCl3) δ: 0.80 (6H, d), 1.55(6H, s), 1.60–1.90 (4H, m), 2.15 (1H, d), 2.20–2.60 (6H, m), 3.25–3.60 (2H, m), 5.30 (2H, br, s), 6.10 (1H, t), 6.80 (1H, dd), 7.15–7.30 (6H, m), 7.40 (1H, d), 7.55 (1H, dd), 8.45 (1H, dd). ESI-MS m/z: 560 (M+1), UV retention time: 1.66 min.

Provenance & Evidence