反应详情

Procedure same as that for ethyl(S)-2-(1-((tert-butoxycarbonyl)amino)-2-methylpropyl)-5-chloronicotinate, using ethyl4-((tert-butoxycarbonyl)amino)-3-oxo-4-(tetrahydrofuran-3-yl)butanoate as a starting material. 1H NMR (CD3OD, 400 MHz): δ 8.73 (s, 1H), 8.24 (s, 1H), 5.66 (d, J=8.0 Hz, 1H), 4.61 (s, 1H), 4.45 (q, J=6.8 Hz, 2H), 3.92-3.86 (m, 1H), 3.82-3.56 (m, 3H), 2.82-2.86 (m, 1H), 1.95 (q, J=7.2 Hz, 1H), 1.74 (q, J=6.8 Hz, 1H), 1.44 (t, J=7.2 Hz, 3H), 1.40 (d, J=6.8 Hz, 9H).