4-Methylmorpholine → 1-[(9-hydroxy-9H-fluoren-9-yl)carbonyl]-N-[2-(4H-1,2,4-triazol-4-yl)benzyl]-L-prolinamide

Participants

Reaction Steps

To a stirred solution of 1-[(9-hydroxy-9H-fluoren-9-yl)carbonyl]-L-proline (Example 16, Step B, 0.06 g, 0.19 mmol) in DMF (1 mL) was added 1-[2-(4H-1,2,4triazol-4-yl) phenyl]methanamine (Example 5, Step A, 0.05 g, 0.31 mmol), BOP Reagent (0.11 g, 0.24 mmol) and N-methylmorpholine to pH=8. The mixture was stirred at room temperature under a nitrogen atmosphere for 1 hour, filtered and purified on a Gilson Preparative HPLC to give the solid 1-[(9-hydroxy-9H-fluoren-9-yl)carbonyl]-N-[2-(4H-1,2,4-triazol-4-yl)benzyl]-L-prolinamide (0.065 g, HPLC RT=2.77 min, Method A; LCMS m/z=480). 1H NMR (400 MHz, CDCl3): δ 8.75 (s, 2H), 7.67–7.64 (m, 3H), 7.62–7.52 (m, 1H), 7.44–7.37 (m, 2H), 7.35–7.29 (m, 3H), 7.23–719 (m, 1H), 7.15 (s, 1H), 7.04 (d, 1H), 4.55–4.53 (m, 1H), 4.31–4.11 (m, 2H), 2.34–2.26 (m, 1H), 2.24–1.95 (m, 1H), 1.72–1.55 (m, 2H), 1.46–1.43 (m, 1H).

Provenance & Evidence