反应详情

3-(4-(2-Aminopyridin-4-yloxy)-3-fluorophenylamino)-3-oxopropanoic acid (Compound C of Example 102, 30 mg, 0.10 mmol) was coupled with (R)-methyl 2-amino-2-phenylacetate, hydrochloride salt (Aldrich, 30 mg, 0.10 mmol) in a manner similar to that which is described in Step C of Example 1 to give (R)-methyl 2-(3-(4-(2-aminopyridin-4-yloxy)-3-fluorophenylamino)-3-oxopropanamido)-2-phenylacetate, hydrochloride salt (25 mg, 51% yield). 1H NMR (DMSO-d6) δ 10.58 (s, 1H), 9.03 (d, 1H, J=7.0 Hz), 7.96 (d, 1H, J=7.0 Hz), 7.77-7.88 (m, 3H), 7.42 (m, 7H), 6.71 (d, 1H, J=7.5 Hz), 6.12 (s, 1H), 5.44 (d, 1H, J=7.0 Hz), 3.63 (s, 3H), 3.44-3.38 (m, 2H); MS(ESI+) m/z 453.29 (M+H)+.