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Diiodomethane → Acetic acid (2R,3R,4R,5R)-3,4-diacetoxy-5-(6-chloro-2-iodo-purin-9-YL)-tetrahydro-furan-2-ylmethyl ester

HRID 895099
ノート
印刷プレビュー

反応式

HRID 895099 の反応式
[C:1]([O:4][C@@H:5]1[C@H:9]([O:10][C:11](=[O:13])[CH3:12])[C@@H:8]([CH2:14][O:15][C:16](=[O:18])[CH3:17])[O:7][C@H:6]1[N:19]1[CH:27]=[N:26][C:25]2[C:20]1=[N:21][C:22](N)=[N:23][C:24]=2[Cl:28])(=[O:3])[CH3:2].[I:30]CI.N(OCCCCC)=O>C(#N)C>[C:1]([O:4][C@@H:5]1[C@H:9]([O:10][C:11](=[O:13])[CH3:12])[C@@H:8]([CH2:14][O:15][C:16](=[O:18])[CH3:17])[O:7][C@H:6]1[N:19]1[CH:27]=[N:26][C:25]2[C:20]1=[N:21][C:22]([I:30])=[N:23][C:24]=2[Cl:28])(=[O:3])[CH3:2]
参加物実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

HCID 6346DiiodomethaneHCID 10026Pentyl nitriteHCID 10788628(2R,3R,4R,5R)-2-(Acetoxymethyl)-5-(2-amino-6-chloro-9H-purin-9-yl)tetrahydrofuran-3,4-diyl diacetate

生成物 1

HCID 482588Acetic acid (2R,3R,4R,5R)-3,4-diacetoxy-5-(6-chloro-2-iodo-purin-9-YL)-tetrahydro-furan-2-ylmethyl ester

試薬・触媒・溶媒 1

HCID 6342Acetonitrile溶媒

実験手順

To a solution of (2R,3R,4R,5R)-4-acetyloxy-5-(acetyloxymethyl)-2-(2-amino-6-chloropurin-9-yl)oxolan-3-yl acetate in acetonitrile was added diiodomethane and n-pentyl nitrite. The mixture was heated under nitrogen for 20 hours, then solvent removed under reduced pressure. The residue was purified by chromatography on silica gel, eluting with hexanes to hexanes/ethyl acetate 2:1, to provide (2R,3R,4R,5R)-4-acetyloxy-5-(acetyloxymethyl)-2-(6-chloro-2-iodopurin-9-yl)oxolan-3-yl acetate, which may be recrystallized from ethanol.

後処理

  1. temperatureThe mixture was heated under nitrogen for 20 hours
  2. customsolvent removed under reduced pressure
  3. customThe residue was purified by chromatography on silica gel
  4. washeluting with hexanes to hexanes/ethyl acetate 2:1

出典と根拠

ORDレコード
ord-9ba3d757d3e64f63bac5e5f97322b588
出典データセット
uspto-grants-2005_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US06914053B2

反応ノート

読み込み中…

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