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Following the procedure for 477, compound 330 and 4-(2-chloroethyl)morpholine hydrochloride were reacted to give 498 (0.005 g, 2%). 1H NMR (500 MHz, DMSO) δ 9.09 (d, J=2.3, 1H), 8.09 (s, 1H), 7.72-7.66 (m, 2H), 7.61 (dd, J=8.4, 2.3, 1H), 7.08 (d, J=8.4, 1H), 6.35 (t, J=6.9, 1H), 5.95 (dt, J=13.1, 6.5, 1H), 4.40 (t, J=5.0, 2H), 4.10 (t, J=6.5, 2H), 3.60-3.53 (m, 4H), 3.46 (t, J=5.0, 2H), 2.64 (t, J=6.5, 2H), 2.46 (d, J=4.4, 4H), 1.55 (d, J=6.6, 6H). MS (ESI(+)): m/z 519.2 (M+H)

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