反应详情

To a solution of 7-((5-chloropyridin-2-yl)methyl)-3-methyl-1-(3-(tetrahydro-2H-pyran-2-yloxy)propyl)-8-(2-(3-(trifluoromethoxy)phenoxy)ethoxy)-1H-purine-2,6(3H,7H)-dione (80 mg, 0.14 mmol) in ethanol (5 mL) was added acetyl chloride (0.2 mL) at 0° C. The mixture was stirred at room temperature for 1 h. The mixture was partitioned between ethyl acetate and water. The organic phase was dried over sodium sulfate, filtered and concentrated to give crude product which was purified by preparative HPLC to give 7-((5-chloropyridin-2-yl)methyl)-1-(3-hydroxypropyl)-3-methyl-8-(2-(3-(trifluoromethoxy)phenoxy)ethoxy)-1H-purine-2,6(3H,7H)-dione (15 mg, 19.0% yield) as white solid. 1H-NMR (CD3OD) δ 8.33(d, 1H), 7.70(dd, 1H), 7.35(t, 1H), 7.26(d, 1H), 6.87(dd, 1H), 6.76(s, 1H), 5.43(s, 2H), 4.86-4.87(m, 2H), 4.33-4.35(m, 2H), 4.04(t, 2H), 3.56(t, 2H), 3.54(s, 3H), 1.80-1.85(m, 2H). LCMS retention time 2.606 min; LCMS MH+ 570.

1. customThe mixture was partitioned between ethyl acetate and water
2. dry with materialThe organic phase was dried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated
5. customto give crude product which
6. customwas purified by preparative HPLC