反应详情

The product of step E was converted to the phenylsulfone derivative following the procedure of Example 71, step D. The crude product was purified by flash column chromatography (SiO2, 75:25 hexanes/ethyl acetate) to give tert-butyl 2-phenylsulfonyl-4-chloro-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylate (165 mg, 63%) as an off-white solid: 1H NMR (CDCl3, 300 MHz): δ 8.02-8.07 (m, 1H), 7.91-7.97 (m, 2H), 7.42-7.62 (m, 4H), 5.10-5.32 (m, 1H), 4.55-4.80 (m, 1H), 3.94 (s, 3H), 3.15-3.48 (m, 1H), 2.47 (d, J=16.2 Hz, 1H), 2.10-2.40 (m, 2H), 1.85-1.96 (m, 1H), 1.52-1.65 (m, 1H), 1.38 (br s, 9H).

1. customThe crude product was purified by flash column chromatography (SiO2, 75:25 hexanes/ethyl acetate)