8-Bromo-2'-deoxyadenosine → 2'-Deoxy-8-methoxyadenosine

HRID 2050604

反応式

HRID 2050604 の反応式
Br[C:2]1[N:3]([C:12]2[N:13]=[CH:14][N:15]=[C:16]([NH2:19])[C:17]=2[N:18]=1)[C@@H:4]1[O:11][C@H:8]([CH2:9][OH:10])[C@@H:6]([OH:7])[CH2:5]1.[CH3:20][O-:21].[Na+]>CO>[CH3:20][O:21][C:2]1[N:3]([C:12]2[N:13]=[CH:14][N:15]=[C:16]([NH2:19])[C:17]=2[N:18]=1)[C@@H:4]1[O:11][C@H:8]([CH2:9][OH:10])[C@@H:6]([OH:7])[CH2:5]1

参加物

4

反応物 2

HCID 965478-Bromo-2'-deoxyadenosineHCID 10942334Sodium Methoxide

生成物 1

HCID 539094342'-Deoxy-8-methoxyadenosine収率 55%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

To a solution of 8-bromo-2'-deoxyadenosine (1.85 g, 5.61 mmol) in methanol (100 ml) was added sodium methoxide (0.908 g, 16.8 mmol), and the mixture was refluxed for 20 h. The solvent was evaporated and the residue chromatographed on silica gel (5% methanol/chloroform) to give 0.865 g (55%) of 2'-deoxy-8-methoxyadenosine: 1H NMR (Me2SO-d6) δ2.11 (m, 2H), 3.53 (m, 2H), 3.81 (m, 1H), 4.10 (s, 3H), 4.38 (m, 1H), 5.24 (m, 2H), 6.18 (t, 1H, J=6.8 Hz), 6.89 (br.s, 2H), 8.02 (s, 1H); UV (H2O) λmax 261 nm. 2'Deoxy-8-methoxyadenosine was converted to 2',3'-dideoxy-8-methoxydenosine (IX) by using in sequence Procedures A (64%), D (83%), and E and F (79%): mp 197°-799° C.; 13C NMR (Me2SO-d6) δ27.0, 28.9, 57.2, 64.0, 81.1, 83.3, 114.8, 148.8, 150.7, 153.9, 154.3; 1H NMR (Me2SO-d6) δ2.16 (m, 4H), 3.51 (m, 2H), 4.10 (br.s, 4H), 5.01 (m, 1H), 6.08 (m, 1H), 6.85 (br.s, 2H), 8.03 (s, 1H); UV (H2O) λmax 260 nm (ε11040); FAB HRMS obsd (M+ +H) 266.1273, calcd for C11H15N5O3 266.1253.

後処理

  1. temperaturethe mixture was refluxed for 20 h
  2. customThe solvent was evaporated
  3. customthe residue chromatographed on silica gel (5% methanol/chloroform)

出典と根拠

ORDレコード
ord-ecc0d45573024d54b4bc0f7b8f92c3d3
出典データセット
uspto-grants-1991_05
特許番号
US05013829

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