HCID 86713636, compound → HCID 89606307, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of Example D2 (0.060 g, 0.269 mmol) and prop-1-en-2-yl (5-(1-ethyl-7-(methylamino)-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2,4-difluorophenyl)carbamate (0.086 g, 0.208 mmol) in dioxane (2 mL) was treated with 1-methylpyrrolidine (2 drops) and heated at 80° C. overnight. The mixture was concentrated to dryness, treated with EtOAc and the resulting solid collected via filtration and purified via reverse-phase chromatography (MeCN/H2O with 0.1% TFA). The organics were removed under reduced pressure, the aqueous residue treated with satd. NaHCO3, extracted with EtOAc (2×) and the combined organics were washed with brine, dried over MgSO4 and concentrated to dryness to afford 1-(5-(1-ethyl-7-(methylamino)-2-oxo-1,2-dihydro-1,6-naphthyridin-3-yl)-2,4-difluorophenyl)-3-(4-fluoro-3-((4-methylpiperazin-1-yl)methyl)phenyl)urea (37 mg, 31% yield). 1H NMR (400 MHz, DMSO-d6): δ 9.82 (s, 1H), 8.94 (s, 1H), 8.86 (t, J=8.5 Hz, 1H), 8.59 (s, 1H), 7.93 (dd, J=6.5, 2.8 Hz, 1H), 7.76 (m, 2H), 7.62 (s, 1H), 7.13 (t, J=9.5 Hz, 2H), 6.25 (s, 1H), 4.19 (q, J=7.1 Hz, 2H), 3.55 (s, 2H), 3.08 (d, J=4.9 Hz, 3H), 2.50 (br s, 4H), 2.30 (br s, 4H), 2.10 (s, 3H), 1.18 (t, J=7.1 Hz, 3H); MS (ESI) m/z: 580.2 [M+H]+.

Provenance & Evidence