反应详情

Using (S)—N-(4-aminobenzyl)-2-acetamido-3-hydroxypropanamide (2.80 g, 11.16 mmol), t-BuONO (3.98 mL, 33.48 mmol), TMSN3 (3.52 mL, 26.78 mmol), and the preceding procedure gave 2.85 g (92%) of (S)—N-(4-azidobenzyl)-2-acetamido-3-hydroxypropanamide as a white solid: mp 161-162° C.; [α]26D −13.6° (c 1.0, MeOH); Rf=0.35 (1/9 MeOH/CHCl3); IR (nujol mull) 3267, 2924, 2129, 1648, 1552, 1459 cm−1; 1H NMR (DMSO-d6) δ 1.87 (s, CH3C(O)), 3.58 (t, J=5.6 Hz, CH2OH), 4.26-4.31 (m, CH2Ar and CH), 4.91 (t, J=5.6 Hz, OH), 7.03-7.08 (m, 2 ArH), 7.27-7.32 (m, 2 ArH), 7.94 (d, J=7.8 Hz, NHCH), 8.40 (t, J=6.0 Hz, NHCH2); 13C NMR (DMSO-d6) δ 22.6 (CH3C(O)), 41.5 (CH2Ph), 55.3 (CH), 61.7 (CH2OH), 118.9, 128.7, 136.5, 137.7 (C6H5), 169.4, 170.3 (2C(O)); HRMS (ESI) 278.1248 [M+H+] (calcd. for C12H16N5O3 278.1253); Anal. (C12H15N5O3) Calcd.: C, 51.98%; H, 5.45%; N, 25.26%. Found: C, 52.08%; H, 5.51%; N, 25.00%.