Triphenylphosphine → HCID 71115229, compound

Participants

Reaction Steps

To a solution of N-(5-(1,4-dihydroxybutan-2-yl)-7-(5-fluoro-2-methylphenyl)-2,6-naphthyridin-3-yl)cyclopropanecarboxamide (45 mg, 0.1 mmol) in tetrahydrofuran (1 mL) was added triphenylphosphine (61 mg, 0.23 mmol) followed by diisopropyl azodicarboxylate (0.028 mL, 0.14 mmol), and the reaction mixture was stirred at room temperature for 1 hour. The reaction mixture was diluted with ethyl acetate (50 mL) and washed with water (50 mL). The organic layer was separated, dried over sodium sulfate, filtered, and evaporated in vacuo to afford a residue that was purified by flash chromatography (silica, 4 g, ISCO, 0-60% ethyl acetate in heptane) and then repurified by reverse phase HPLC (5-85% acetonitrile in water with 0.1% formic acid over 14 min) to afford the title compound as an off-white solid (10 mg, 20% over two steps). 1H NMR (400 MHz, DMSO) δ 11.18 (s, 1H), 9.30 (s, 1H), 8.83 (s, 1H), 8.03 (s, 1H), 7.41-7.31 (m, 2H), 7.19 (td, J=8.5, 2.8 Hz, 1H), 4.31-4.23 (m, 1H), 4.20 (t, J=7.7 Hz, 1H), 4.00-3.95 (m, 1H), 3.94-3.86 (m, 2H), 2.42-2.35 (m, 5H), 2.10 (m, 1H), 0.95-0.82 (m, 4H). LCMS (Method E): RT=5.416 min, M+H+=392.2.

Provenance & Evidence