Sodium 4-cyanobenzenesulfinate → Tert-butyl 2-(4-cyanophenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylate

Participants

Reaction Steps

Intermediate 11 was coupled with the product of Example 27, step B following the procedure of Example 27, step C. The crude product was purified by flash column chromatography (SiO2, 8:2 hexane/ethyl acetate) to give tert-butyl 2-(4-cyanophenyl)sulfonyl-5-methyl-5,6,7,8,9,10-hexahydro-7,10-epiminocyclohepta[b]indole-carboxylate (184 mg, 50%) as a yellow solid: 1H NMR (CDCl3, 300 MHz) δ 8.18 (s, 1H), 8.05 (dd, J=6.9, 1.5 Hz, 2H), 7.75 (dd, J=6.9, 1.5 Hz, 2H), 7.66 (dd, J=8.7, 1.5 Hz, 1H), 7.33 (d, J=8.7 Hz, 1H), 5.26 (br s, 1H), 4.69 (br s, 1H), 3.62 (s, 3H), 3.37 (br s, 1H), 2.51 (d, J=15.9 Hz, 1H), 2.13-2.41 (m, 2H), 1.87-1.99 (m, 1H), 1.67-1.70 (m, 1H), 1.39 (br s, 9H).

Provenance & Evidence