Diphenyl sulfone → HCID 131731027, compound

Participants

Reaction Steps

The product of step A was converted to the phenyl sulfone derivative following the procedure of example 1, step C. The crude material was purified by flash column chromatography (SiO2 98:2 to 65:35 hexane/ethyl acetate) to give tert-butyl 2-phenylsulfonyl-5-[(trimethylsilyl)ethoxy]methyl-5,6,7,8,9,10-hexahydro-7,10-iminocyclohept[b]indole-carboxylate (1.30 g, 58%) as a brown foam: 1H NMR (CDCl3, 300 MHz) δ 8.28 (s, 1H), 8.03-8.09 (m, 2H), 7.75-7.83 (m, 1H), 7.51-7.62 (m, 4H), 5.28-5.49 (m, 3H), 4.66-4.89 (m, 1H), 3.45-3.68 (m, 3H), 2.64 (d, J=16.2 Hz, 1H), 2.45-2.52 (m, 1H), 2.25-2.38 (m, 1H), 2.01-2.11 (m, 1H), 1.64-1.75 (m, 1H), 1.46 (br s, 9H), 0.88-0.95 (m, 2H), −0.11 (s, 9H).

Provenance & Evidence