反应详情

(S)-3,5-dichloro-4-(2-(3-(cyclopropylmethoxy)-4-(difluoromethoxy)phenyl)-2-(2-(5-nitro-1,3-dioxoisoindolin-2-yl)acetoxy)ethyl)pyridine 1-oxide (40 mg, 0.062 mmol) was dissolved in DCM (2 ml), and added with 2-(1,3-dioxo-3,4-dihydroisoquinolin-2(1H)-yl)acetyl chloride (163 mg, 0.686 mmol) and DMAP (84 mg, 0.686 mmol). The reaction was stirred at RT overnight and quenched by addition of HCl. The solution extracted with DCM and washed with NaHCO3 sat. sol., then dried over Na2SO4 and the solvent removed under reduced pressure. The crude was purified by preparative HPLC (Method 2) to yield the titled compound (30.0 mg, 52% yield).). 1H NMR (400 MHz, acetone) ppm 8.19 (s, 2H), 8.09-8.15 (m, 1H), 7.67-7.79 (m, 1H), 7.44-7.61 (m, 2H), 7.15-7.24 (m, 2H), 7.01-7.09 (m, 1H), 6.94 (t, J=75.00 Hz, 1H), 6.01-6.25 (m, 1H), 4.68 (s, 2H), 4.24 (s, 2H), 4.03 (dd, J=6.84, 2.87 Hz, 2H), 3.42-3.60 (m, 1H), 3.20-3.38 (m, 1H), 1.24-1.46 (m, 1H), 0.65 (dd, J=8.16, 1.54 Hz, 2H), 0.43 (d, J=5.73 Hz, 2H); MS/ESI+ 621.3 [MH]+

1. customquenched by addition of HCl
2. extractionThe solution extracted with DCM
3. washwashed with NaHCO3 sat. sol.
4. dry with materialdried over Na2SO4
5. customthe solvent removed under reduced pressure
6. customThe crude was purified by preparative HPLC (Method 2)