Tetrahydrofuran → 3-(4-(2,6-Dichlorophenyl)-9-hydroxy-1,3-dioxo-2,3-dihydropyrrolo[3,4-c]carbazol-6(1h)-yl)propanamide

Participants

Reaction Steps

Reaction of methyl ether (250) (80 mg, 0.17 mmol)) prepared as described in example 210 according to The procedure described in example 80, followed by chromatography on silica eluting with ethyl acetate then tetrahydrofuran and trituration from ethyl acetate, gave amide (258) (47 mg, 59%) as an orange powder, mp 327–329° C. 1H NMR δ [(CD3)2SO] 11.12 (br s, 1H), 9.39 (s, 1H), 8.36 (d, J=2.4 Hz, 1H), 7.82 (s, 1H), 7.61 (m, 3H), 7.51 (dd, J=8.8, 7.4 Hz, 1H), 7.38 (br s, 1H), 7.15 (dd, J=8.9, 2.4 Hz, 1H), 6.87 (br s, 1H), 4.65 (t, J=6.7 Hz, 2H), 2.55 (t, J=6.7 Hz, 2H). Found: C, 57.75; H, 3.83; N, 8.50. C23H15Cl2N3O4.3/4H2O requires: C, 57.33; H, 3.45; N, 8.72.

Provenance & Evidence