1,2-Dichloroethane → HCID 58674952, compound

Participants

Reaction Conditions

Reaction Steps

A stirred mixture of (S)-2-(3-benzoylamino-2-oxo-2H-pyridin-1-yl)-3-phenyl-propionic acid (2.20 g, 6.07 mmol), 3(R,S)-Amino-5-fluoro-4(R,S)-hydroxy-pentanoic acid tert-butyl ester (1.39 g, 6.68 mmol), HOBt (902 mg, 6.68 mmol), DMAP (853 mg, 6.98 mmol) and THF (20 mL) was cooled to 0° C. then EDC (1.28 mg, 6.68 mmol) was added. The mixture was allowed to warm to room temperature during 16 h then concentrated under reduced pressure. The residue was purified by flash chromatography (30-70 to 55-45% ethyl acetate/hexane) to afford the title compound as a white foam (1.23 g, 32%); 1H NMR (400 MHz, CDCl3) δ 0.88-0.93 (3H, m), 1.35-1.42 (9H, 2s), 2.50-2.65 (2H, m), 3.20-3.35 (2H, m), 3.60 (1H, m), 3.98 (1H, m), 4.10-4.32 (3H, m), 5.62-5.70 (1H, m), 6.44 (1H, m), 6.80-6.98 (1H, m), 7.21-7.41 (5H, m), 7.55-7.62 (3H, m), 7.95 (2H, m), 8.58 (1H, t), 9.18 (1H, br s).

Provenance & Evidence