Triethylamine → HCID 89570511, compound

Participants

Reaction Steps

To a stirred solution of (7R)-2-chloro-8-(4,4-difluorocyclohexyl)-7-methyl-7,8-dihydropteridin-6(5H)-one (1.80 g, 5.7 mmol) in dichloromethane (75 mL) was added triethylamine (8.07 ml, 57.8 mmol), cupric acetate (2.09 g, 11.56 mmol) and (3-cyanophenyl)boronic acid (1.69 g, 11.56 mmol) followed by 4 Å molecular sieves (2 g). The reaction mixture was stirred for 48 h at rt with an air balloon on the top. The reaction mixture was then filtered over celite to give a clear solution. The solution was washed with aqueous saturated sodium bicarbonate (50 mL×2), dried over anhydrous sodium sulfate and evaporated to give a crude material, which was then purified by silica gel column chromatography (eluent: 2% methanol in dichloromethane) to give the desired product (51%). 1HNMR (300 MHz, CDCl3): δ 1.50 (d, J=6.9 Hz, 3H), 1.80-2.24 (m, 8H), 4.40-4.61 (m, 2H), 7.20-7.26 (m, 1H), 7.47 (d, J=7.5 Hz, 1H), 7.55 (s, 1H), 7.69 (t, J=7.8 Hz, 1H), 7.80 (d, J=8.1 Hz, 1H).

Provenance & Evidence