反应详情

To a mixture of phenylmethyl {[(3R,4R)-4-hydroxy-3-piperidinyl]methyl}carbamate (for a preparation see Example 135(f); 0.72 g; 2.72 mmol) in anhydrous DCM (10 mL) and anhydrous MeOH (2 mL) was added (7-fluoro-2-oxo-1(2H)-quinolinyl)acetaldehyde (for a preparation see Example 88(a)) (0.559 g; 2.72 mmol) and activated 4A sieves. The reaction was stirred under N2 for 18 h. The crude intermediate was treated with sodium triacetoxyborohydride (2.72 mmol; 577 mg) and stirred for 2 h. The product was obtained as a pale yellow oil after column:chromatography (90:10:DCM:MeOH) to yield 306 mg (25%) of the product as its free base.

1. stirringstirred for 2 h
2. customThe product was obtained as a pale yellow oil after column