反应详情

A mixture of EXAMPLE 74A (30 mg) in 1N aqueous LiOH/methanol/THF (1 mL/1 mL/1 mL) was stirred at room temperature overnight. The reaction mixture was acidified with 1 NHCl (1 mL), and extracted with ethyl acetate. The organic phase was dried (Na2SO4) filtered, and concentrated. The concentrate was purified by reverse phase HPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid). 1H NMR (400 MHz, DMSO-d6) δ 16.82 (s, 1H), 8.08 (d, 1H), 7.96 (d, 1H), 7.85 (d, 1H), 7.69 (d, 1H), 7.48 (m, 3H), 7.36 (t, 1H), 7.24 (m, 1H), 7.13 (t, 1H), 6.83 (t, 1H), 4.89 (t, 2H), 4.16 (t, 2H), 3.24 (br, 4H), 2.33 (m, 2H), 1.70 (br, 6H).

1. extractionextracted with ethyl acetate
2. dry with materialThe organic phase was dried (Na2SO4)
3. filtrationfiltered
4. concentrationconcentrated
5. customThe concentrate was purified by reverse phase HPLC (Zorbax SB-C18, 20-100% acetonitrile/water/0.1% trifluoroacetic acid)