Sulfamide → 4-{6-Amino-7-[(1R)-1-(2,6-dichloro-3-fluorophenyl)ethoxy]furo[3,2-c]pyridin-3-yl}-3,6-dihydropyridine-1(2H)-sulfonamide

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Reaction Steps

A mixture of 7-[(R)-1-(2,6-Dichloro-3-fluorophenyl)-ethoxy]-3-(1,2,3,6-tetrahydropyridin-4-yl)-furo[3,2-c]pyridin-6-ylamine (0.0300 g, 0.071 mmol) and Sulfamide (0.00819 g, 0.0852 mmol) in 1,4-Dioxane (2 mL) was stirred under reflux for 7 h. The reaction mixture was directly loaded onto prep TLC for purification (silica gel, eluting with 4% MeOH in DCM) to afford the title compound as a yellow solid. 1H-NMR (CD3OD, 400 MHz): δ=1.87 (d, J=6.6 Hz, 3H), 2.60 (d, J=1.5 Hz, 2H), 3.36 (t, J=5.7 Hz, 2H), 3.85 (d, J=2.8 Hz, 2H), 6.29 (br. s., 1H), 6.49 (q, 1H), 7.21 (t, J=8.7 Hz, 1H), 7.39 (dd, J=9.0, 4.9 Hz, 1H), 7.64 (s, 1H), 8.19 (s, 1H). MS (ES+): m/z 500.98 (MH+, 35Cl, 37Cl), 502.88 (MH+, 37Cl, 37Cl). HPLC: tR=2.92 min (polar—5 min, ZQ3).

Provenance & Evidence