N-(2-aminoethyl)-N-methylmethanesulfonamide → 1-[2-(Dimethylamino)-2-oxoethyl]-7-[(4-fluorophenyl)methyl]-4-hydroxy-N-{2-[methyl(methylsulfonyl)amino]ethyl}-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxamide

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Reaction Steps

This compound was prepared from ethyl 1-[2-(dimethylamino)-2-oxoethyl]-7-[(4-fluorophenyl)methyl]-4-hydroxy-2-oxo-1,2-dihydro-1,5-naphthyridine-3-carboxylate and N-(2-aminoethyl)-N-methylmethanesulfonamide employing methods similar to those described in Example 245 and was purified by reverse phase preparative HPLC (C-18 stationary phase; 10-100% CH3CN/water/0.1% formic acid mobile phase). The product was obtained as a cream-colored solid: 1H NMR (d6-DMSO) δ 10.20 (1H, br t, J=6 Hz), 8.51 (1H, s), 7.76 (1H, s), 7.31 (2H, dd, J=8.3, 6 Hz), 7.12 (2H, t, J=˜9 Hz), 5.12 (2H, s), 4.11 (2H, s), 3.55 (2H, q, J=6 Hz), 3.25 (2H, m), 3.12 (3H, s), 2.85 (3H, s), 2.81 (3H, s), 2.79 (3H, s); HRMS calcd for C24H28FN5O6+H+: 534.1823. Found: 534.1812.

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