Uridine → HCID 69588187, Verbindung

HRID 1797382Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1797382
[C@@H:1]1([N:10]2[CH:17]=[CH:16][C:14](=[O:15])[NH:13][C:11]2=[O:12])[O:9][C@H:6]([CH2:7][OH:8])[C@@H:4]([OH:5])[C@H:2]1[OH:3].[CH2:18]([O:20][C:21](=[O:39])[CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][O:27][C:28]1[CH:33]=[CH:32][C:31]([CH:34](OC)OC)=[CH:30][CH:29]=1)[CH3:19].O.C1(C)C=CC(S(O)(=O)=O)=CC=1.C(N(CC)CC)C>CN(C=O)C>[CH2:18]([O:20][C:21](=[O:39])[CH2:22][CH2:23][CH2:24][CH2:25][CH2:26][O:27][C:28]1[CH:33]=[CH:32][C:31]([CH:34]2[O:5][CH:4]3[CH:6]([CH2:7][OH:8])[O:9][CH:1]([N:10]4[CH:17]=[CH:16][C:14](=[O:15])[NH:13][C:11]4=[O:12])[CH:2]3[O:3]2)=[CH:30][CH:29]=1)[CH3:19]

Komponenten

6

Edukt 4

HCID 6029UridineHCID 8471TriethylamineHCID 521998p-Toluenesulfonic acid monohydrateHCID 695885636-(4-Dimethoxymethyl-phenoxy)-hexanoic acid ethyl ester

Produkt 1

HCID 69588187HCID 69588187, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6228DimethylformamideLösungsmittel

Reaktionsbedingungen

Temperatur
50 °C

Versuchsvorschrift

Uridine 5 (7, 50 g, 0.21 mol) together with 4 (70 g, 0.23 mol) was dissolved in DMF (150 mL). p-Toluenesulfonic acid monohydrate (3.8 g, 20 mmol) was added, the mixture was placed on a Buechi R-134 rotavapor and agitated under reduced pressure (70 mbar) at 50° C. for 15 h. The mixture was then neutralized with triethylamine (2.8 ml, 20 mmol) and subsequently concentrated in vacuo. The resulting residue was suspended in EtOAc (400 mL), filtered and washed with 1:1 EtOAc/H2O (400 mL), H2O (2×200 mL), 1:1 H2O/Et2O (200 mL) and Et2O (2×200 mL) to give a colorless solid as a mixture of 2 diastereomers (6, 77 g, 0.16 mol, 76%). Upon recrystallisation from EtOH/EtOAc one of the diastereomers exclusively crystallized: M.p.: 176-178° C.; 1H-NMR (400 MHz, (CD3)2SO3) δ=11.38 (s, 1H), 7.82 (d, J=8.1, 1H), 7.42 (d, J8.6, 2H), 6.95 (d, J=8.6, 2H), 5.94 (s, 1H), 5.90 (s, 1H), 5.64 (d, J=8.1, 1H), 5.10 (t, J=5.2, 1H), 4.99 (m, 1H), 4.82 (m, 1H), 4.23 (m, 1H), 4.04 (q, J=7.1, 2H), 3.97 (t, J=6.3, 2H), 3.60 (m, 2H), 2.30 (t, J=7.4, 2H), 1.71 (m, 2H), 1.58 (m, 2H), 1.41 (m, 2H), 1.16 (t, J=7.1, 3H); 13C-NMR (400 MHz, (CD3)2SO) δ=172.8, 163.2, 159.7, 150.3, 142.1, 128.4 (2C), 128.0, 114.2 (2C), 106.5, 101.7, 91.3, 86.4, 84.2, 81.6, 67.4, 61.3, 59.6, 33.4, 28.3, 25.0, 24.2, 14.1; IR (film) ν=3467, 2933, 1692, 1677, 1248, 1116, 1077, 828; HRMS (MALDI-FTMS) m/z 513.1851 (513.1849 calculated for C24H30N2O9Na (M+Na)+).

Aufarbeitung

  1. concentrationsubsequently concentrated in vacuo
  2. filtrationfiltered
  3. washwashed with 1:1 EtOAc/H2O (400 mL), H2O (2×200 mL), 1:1 H2O/Et2O (200 mL) and Et2O (2×200 mL)
  4. customto give a colorless solid
  5. additionas a mixture of 2 diastereomers (6, 77 g, 0.16 mol, 76%)
  6. customUpon recrystallisation from EtOH/EtOAc one of the diastereomers
  7. customexclusively crystallized

Quellen und Nachweise

ORD-Eintrag
ord-a07287336a1b442ba6c7b02783fb1f00
Quelldatensatz
uspto-grants-2006_04
Patentnummer
US07034147B2

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