Trifluoroacetic acid → HCID 90402345, compound

Participants

Reaction Steps

tert-Butyl 3-(7-(4-chlorobenzyl)-3-methyl-2,6-dioxo-8-(3-(trifluoromethoxy)phenoxy)-2,3,6,7-tetrahydro-1H-purin-1-yl)propanoate (0.23 g, 0.383 mmol, Example 397) was dissolved in DCM (4 mL) and TFA (0.57 mL, 7.66 mmol) was added. The reaction was stirred at room temperature for 1 h; then the solvent was removed under reduced pressure to leave a golden oil (0.21 g). The oil was purified using a 12 g silica gel column eluted with 5% methanol/DCM to give 34744-chlorobenzyl)-3-methyl-2,6-dioxo-8-(3-(trifluoromethoxy)phenoxy)-2,3,6,7-tetrahydro-1H-purin-1-yl)propanoic acid (0.13 g, 63% yield) as an white solid. LCMS retention time=3.903 min and 99% purity, LCMS MH+=539. 1H NMR (CDCl3) δ 7.14-7.47 (m, 8H), 5.41 (s, 2H), 4.35 (t, 2H, J=8 HZ), 3.44 (s, 3H), 2.77 (t, 2H, J=8 HZ).

Provenance & Evidence