Sodium Bicarbonate → HCID 178455829、化合物

関与物質

反応手順

(R)-8-cyclopentyl-7-ethyl-2-(2-fluoropyridin-4-yl)-5-methyl-7,8-dihydropteridin-6(5H)-one (Example 16, 100 mg, 0.28 mmol) was dissolved in 3 mL of HCOOH. This mixture was heated to reflux for 18 h, then aqueous NaHCO3 was added and the mixture was extracted with EtOAc. The combined organic phase was dried with Na2SO4, concentrated under reduced pressure and chromatographed on flash silica gel (CH2Cl2:CH3OH=6:1) to give the title compound as a white solid (80 mg, 80% yield). 1H NMR (CD3OD) δ: 8.09 (s, 1H), 8.52 (d, 1H) 7.46 (s, 1H), 7.27 (m, 1H), 4.42-4.38 (m, 2H), 3.41 (s, 3H), 2.0-1.7 (m, 10H) and 0.86 ppm (t, 3H); LCMS: 354.2 m/z (M+H)+; ret. Time: 1.36 min (Analytical Method E).

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