Methyl iodide → HCID 22477179, compound

Participants

Reaction Steps

Methyl iodide (2.5 mL) was added to a solution of 2-[1-methyl-5-(1-trimethylstannanyl-1H-tetrazol-5-yl)-1H-indol-3-yl]-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine [620 mg, Reference Example 20] at ambient temperature. The mixture was then allowed to stir at ambient temperature for 4 hours then was poured into water and then extracted with ethyl acetate. The combined extract was washed with brine, then dried over magnesium sulfate and then evaporated. The residue was subjected to flash chromatography on silica eluting with a mixture of ethyl acetate and petroleum ether (1:1, v/v) to give 2-[1-methyl-5-(1-methyl-1H-tetrazol-5-yl)-1H-indol-3-yl]-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine (191 mg) as a colourless solid, [MS: 506(MNa+). 1H NMR [(CD3)2SO]: δ 8.39 (dd, 1H, J=4.8 and 1.6 Hz); 7.97 (m, 1H); 7.96 (d, 1H, J=4.0 Hz); 7.90 (s, 1H); 7.80 (dd, 1H, J=8.7 and 0.6 Hz); 7.70 (dd, 1H, J=8.7 and 1.8 Hz); 7.56 (m, 2H); 7.30 (dd, 1H, J=7.7 and 4.8 Hz); 7.22 (m, 2H); 6.82 (s, 1H); 4.19 (s, 3H); 4.0 (s, 3H); 2.23 (s, 3H)] and 2-[1-Methyl-5-(2-methyl-2H-tetrazol-5-yl)-1H-indol-3-yl]-1-(toluene-4-sulfonyl)-1H-pyrrolo[2,3-b]pyridine (77 mg) as a colourless solid, m.p. 215-218° C. [MS: 506(MNa+)].

Provenance & Evidence