1-Azido-4-fluorobenzene → (2S,3S)-ethyl-3-((S)-1-((1-(4-fluorophenyl)-1H-1,2,3-triazol-4-yl)methylamino)-1-oxo-3-(thiazol-4-yl)propan-2-ylcarbamoyl)oxirane-2-carboxylate

Participants

Reaction Steps

The general click procedure was used substituting the following quantities: 37 (27.3 mg, 0.08 mmol); 1-azido-4-fluorobenzene (10.4 mg, 0.08 mmol); CuSO4 (2.0 mg, 0.01 mmol); NaAsc (6.0 mg, 0.03 mmol); TBTA (5.0 mg, 0.01 mmol); in t-BuOH/EtOH/H2O (2:1:0.5); afforded the 39 as a white solid (35 mg, 92.2%). 1H NMR (CDCl3, 400 MHz): δ 8.73-8.72 (d, 1H, J=1.91 Hz); 7.90 (s, 1H); 7.74-7.67 (m, 3H); 7.58-7.55 (t, 1H); 7.24-7.18 (t, 2H); 7.07-7.06 (d, 1H, J=1.71 Hz); 4.84-4.79 (q, 1H); 4.54-4.50 (d, 2H, J=5.90 Hz); 4.29-4.21 (m, 2H); 3.68-3.67 (d, 1H, J=1.78 Hz); 3.53-3.52 (d, 1H, J=1.78 Hz); 3.37-3.18 (m, 2H); 1.30-1.26 (t, 3H). 13C NMR (CDCl3, 100 MHz): 169.82, 166.17, 166.03, 163.28, 160.81, 152.86, 152.00, 144.94, 132.78, 122.10, 122.01, 120.48, 116.45, 116.22, 115.59, 61.91, 53.43, 52.40, 52.24, 34.55, 32.42, 13.63.

Provenance & Evidence