反应详情

To a solution of 3-(5-(4-chlorobenzyl)-6-(4-chlorophenyl)-1-methyl-2,4-dioxo-1,2-dihydropyrido[3,4-d]pyrimidin-3(4H)-yl)propyl formate (16 mg, 0.032 mmol) in THF (0.5 mL) and H2O (0.5 mL) was added LiOH.H2O (2.7 mg, 0.064 mmol). The reaction was stirred at RT for 0.5 h then diluted with EA (5 mL). The organic layer was washed with brine (5 mL), dried over Na2SO4 and concentrated to a residue which was purified by Prep HPLC to give 5-(4-chlorobenzyl)-6-(4-chlorophenyl)-3-(3-hydroxypropyl)-1-methylpyrido[3,4-d]pyrimidine-2,4(1H,3H)-dione (6 mg, 80%) as a white solid. 1H NMR (CDCl3) δ: 8.79 (s, 1H), 7.42-7.33 (m, 2H), 7.28 (d, J=1.9 Hz, 1H), 7.26 (s, 1H), 7.17 (d, J=8.4 Hz, 2H), 6.80 (d, J=8.4 Hz, 2H), 4.64 (s, 2H), 4.17 (t, J=6.2 Hz, 2H), 3.74 (s, 3H), 3.46 (dd, J=11.5, 5.9 Hz, 2H), 2.70 (t, J=6.7 Hz, 1H), 1.96-1.71 (m, 2H). LCMS: MH+ 470 and TR=2.924 min.

1. washThe organic layer was washed with brine (5 mL)
2. dry with materialdried over Na2SO4
3. concentrationconcentrated to a residue which
4. customwas purified by Prep HPLC