(2S)-2-Amino-2-phenylacetamide--hydrogen chloride (1/1) → (S)-N-(2-amino-2-oxo-1-phenylethyl)-N3(4-(2-aminopyridin-4-yloxy)-3-fluorophenyl)malonamide, hydrochloride salt

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3-(4-(2-Aminopyridin-4-yloxy)-3-fluorophenylamino)-3-oxopropanoic acid (30 mg, 0.10 mmol) was coupled with (S)-2-amino-2-phenylacetamide hydrochloride (Acros, 28 mg, 0.15 mmol) in a manner similar to that which is described in Step C of Example 1 to give (S)—N1-(2-amino-2-oxo-1-phenylethyl)-N3-(4-(2-aminopyridin-4-yloxy)-3-fluorophenyl)malonamide, hydrochloride salt (25 mg, 53% yield). 1H NMR (DMSO-d6) δ 10.68 (s, 1H), 8.80 (d, 1H, J=8.0 Hz), 7.96 (d, 1H, J=7.5 Hz), 7.77-7.90 (m, 4H), 7.20-7.45 (m, 8H), 6.70 (m, 1H), 6.12 (s, 1H), 5.39 (d, 1H, J=7.5 Hz), 3.48 (d, 1H, J=15.0 Hz), 3.41 (d, 1H, J=15.0 Hz); MS(ESI+) m/z 438.26 (M+H)+.

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