反应详情

N-[1-(cis-3-azido-cyclobutyl )-1H-imidazol-4-yl]-2-naphthalen-1-yl-acetamide (Preparation 4, Step 4; 330 mg, 0.95 mmol) was treated with triphenylphosphine (301 mg, 1.15 mmol) in tetrahydrofuran (10 mL) and water (1 mL) at 23° C. The solution was stirred at room temperature for 18 h. The solvent was removed in vacuo and the resulting residue was purified by silica gel chromatography (20:1:0.5 chloroform-methanol-ammonium hydroxide) to afford 289 mg (95% yield) of N-[1-(cis-3-amino-cyclobutyl)-1H-imidazol-4-yl]-2-naphthalen-1-yl-acetamide; 1H NMR (400 MHz, CD3OD) δ8.05 (d, J=7.5 Hz, 1H), 7.87 (d, J=7.9 Hz, 1H), 7.79 (d, J=9.0 Hz, 1H), 7.45 (m, 5H), 7.35 (s, 1H), 4.26 (m, 1H), 4.16 (s, 2H), 3.29 (m, 2H), 3.16 (m, 1H), 2.75 (m, 2H), 2.1 (m, 2H); MS (AP/Cl): 321.3 (M+H)+.

1. customThe solvent was removed in vacuo
2. customthe resulting residue was purified by silica gel chromatography (20:1:0.5 chloroform-methanol-ammonium hydroxide)