Water → HCID 9851065, compound

Participants

Reaction Conditions

Reaction Steps

Intermediate #18, 11-[4-(2-Chloroethoxy)-benzyl]-8-benzyloxy-3-methoxy-5,11-dihydro-6H-benzo[a]carbazole, (6 g, 11.5 mmol) in DMF was treated with KI (2.5 g, 15.0 mmol) and piperidine (12 mL) and heated to 65° C. for 18 hours. The reaction was worked up by pouring the crude reaction mixture into water and extracting with ethyl acetate. The ethyl acetate layer was washed with NaHCO3 aq., brine and dried over MgSO4. The resultant was chromatographed on silica gel using CH2Cl2 (100%), CH2Cl2 :MeOH (98:2), CH2Cl2 :MeOH (96:4) as the eluting solvents. The product (3.2 g) was isolated as an oil: 1H NMR (DMSO) 7.52-7.12 (m, 8 H), 6.98-6.82 (m, 5 H), 6.80 (dd, 1 H, J=8.4 Hz, 2.6 Hz), 6.73 (dd, 1 H, J=8.8 Hz, 2.4 Hz), 5.56 (s, 2 H), 5.11 (s, 2 H), 3.98 (t, 2 H, J=6.0 Hz), 3.70 (s, 3 H), 2.85-2.78 (m, 2 H), 2.75 (s, 2 H), 2.60 (t, 2 H, J=6.5 Hz), 2.42-2.38 (m, 4 H), 1.70-1.58 (m, 4 H), 1.58-1.35 (m, 2 H).

Provenance & Evidence