反应详情

A mixture of pentafluorophenyl 3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetate (513 mg, 1.07 mmol), methyl (S)-3-chloro-4-(2-amino-1-propoxy)benzoate (260 mg, 1.07 mmol) and Et3 N (220 μl, 1.58 mmol) in DMF (10 mL) was stirred at room temp overnight. The mixture was diluted with EtOAc and the solution was washed with sat. NaHCO3, dried over Na2SO4, and evaporated. The residue was recrystallized from MeOH—CHCl3-EtOAc-n-hexane to give 400 mg (69%) methyl (S)-3-chloro-4-[2-[3-methoxy-4-[N′-(2-methylphenyl)ureido]phenylacetylamino]-1-propoxy]benzoate as pale brown crystalline powder. 1H-NMR (DMSO-d6) δ 1.21 (d, 3 H, J=6.4 Hz), 2.24 (s, 3 H), 3.37 (s, 2 H), 3.82(s, 3 H), 3.83 (s, 3 H), 4.04–4.12 (m, 3 H), 6.75–6.77 (m, 1 H), 6.91–6.95 (m, 2 H), 7.11–7.17 (m, 2 H), 7.29–7.31 (m, 1 H), 7.78–7.99 (m, 4 H), 8.12–8.13 (m, 1H), 8.46 (s, 1 H), 8.55 (s, 1 H).

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2. dry with materialdried over Na2SO4
3. customevaporated
4. customThe residue was recrystallized from MeOH—CHCl3-EtOAc-n-hexane