1,1'-Carbonyldiimidazole → 3-(3-ethoxy-4-methoxyphenyl)-N-hydroxy-3-(4-hydroxyphthalimido)propionamide
Reaction equation
[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([CH:12]([N:17]2[C:21](=[O:22])[C:20]3=[CH:23][C:24]([OH:27])=[CH:25][CH:26]=[C:19]3[C:18]2=[O:28])[CH2:13][C:14](O)=[O:15])[CH:7]=[CH:8][C:9]=1[O:10][CH3:11])[CH3:2].C(N1C=CN=C1)(N1C=CN=C1)=O.Cl.[NH2:42][OH:43]>O1CCCC1>[CH2:1]([O:3][C:4]1[CH:5]=[C:6]([CH:12]([N:17]2[C:21](=[O:22])[C:20]3=[CH:23][C:24]([OH:27])=[CH:25][CH:26]=[C:19]3[C:18]2=[O:28])[CH2:13][C:14]([NH:42][OH:43])=[O:15])[CH:7]=[CH:8][C:9]=1[O:10][CH3:11])[CH3:2]Participants
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
3-(3-Ethoxy-4-methoxyphenyl)-N-hydroxy-3-(4-hydroxyphthalimido)propionamide was prepared by the procedure of Example 1 from 3-(3-ethoxy-4-methoxyphenyl)-3-(4-hydroxyphthalimido)propanoic acid (4.0 g, 10.4 mmol), carbonyldiimidazole (2.02 g, 12.46 mmol) and hydroxylamine hydrochloride (1.13 g, 16.3 mmol) in tetrahydrofuran (20 mL) to afford 3-(3-ethoxy-4-methoxyphenyl)-N-hydroxy-3-(4-hydroxyphthalimido)propionamide as a yellow solid (1.8 g, 44% yield): mp, 143.5–146.0° C.; 1H NMR (DMSO-d6) δ 1.31 (t, J=6.9 Hz, 3H, CH3), 3.09 (d, J=7.9 Hz, 2H, CH2), 3.72 (s, 3H, CH3), 3.98 (q, J=6.9 Hz, 2H, CH2), 5.62 (t, J=7.9 Hz, 1H, NCH), 6.89 (br s, 2H, Ar), 7.01 (br s, 1H, Ar), 7.09–7.12 (m, 2H, Ar), 7.66–7.69 (m, 1H, Ar), 8.88 (br s, 1H, OH), 10.59 (br s, 1H, NH); 13C NMR (DMSO-d6) δ 24.71, 44.39, 60.08, 65.47, 73.75, 119.72, 121.76, 122.36, 129.66, 130.53, 131.37, 135.32, 141.49, 144.08, 157.68, 158.51, 173.43, 176.09, 177.49; Anal Calcd for C20H20N2O7+0.35 H2O: C, 59.07; H, 5.13; N, 6.89. Found: C, 58.84; H, 5.05; N, 7.26.
Sources & evidence
- ORD record
- ord-2e6a4a7db9b74f96ab7573eca76e99a4
- Source dataset
- uspto-grants-2006_08
- Patent number
- US07091356B2
Reaction notes
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