反应详情

(11R)-2-(Benzyloxy)-11-methyl-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinolin-6-amine (840 mg, 2.33 mmol) was dissolved in ethanol (50 mL) and the solution was placed in a pressure bottle. Palladium on carbon (10%, 620 mg) was added and the reaction mixture was shaken under H2 at 48 PSI (3.3×105 Pa) for 3 days. The reaction mixture was filtered through a pad of CELITE filter agent. The pad was rinsed with 1:1 CH2Cl2/acetonitrile and the combined filtrates were concentrated under reduced pressure to give a pink solid. Chromatography (SiO2, 20-40% CMA/CHCl3) gave a white solid, which was dissolved in methanol and concentrated under reduced pressure (2×) to give (11S)-6-amino-11-methyl-10,11-dihydro-8H-[1,4]oxazino[4′,3′:1,2]imidazo[4,5-c]quinolin-2-ol (265 mg) as an off white solid, mp 262-264° C.

1. filtrationThe reaction mixture was filtered through a pad of CELITE
2. filtrationfilter agent
3. washThe pad was rinsed with 1:1 CH2Cl2/acetonitrile
4. concentrationthe combined filtrates were concentrated under reduced pressure
5. customto give a pink solid
6. concentrationconcentrated under reduced pressure (2×)