N,N-Diethylethanamine trihydrofluoride → 3'-Deoxy-2'-o-(2-methoxyethyl)-3'-methyl-5-methyluridine

HRID 2212897노트

반응식

HRID 2212897 반응식
[Si]([O:18][CH2:19][C@H:20]1[O:24][C@@H:23]([N:25]2[CH:32]=[C:31]([CH3:33])[C:29](=[O:30])[NH:28][C:26]2=[O:27])[C@H:22]([O:34][CH2:35][CH2:36][O:37][CH3:38])[C@@H:21]1[CH2:39]I)(C(C)(C)C)(C1C=CC=CC=1)C1C=CC=CC=1.F.F.F.C(N(CC)CC)C>C1COCC1.C(OCC)(=O)C>[CH3:38][O:37][CH2:36][CH2:35][O:34][C@@H:22]1[C@H:21]([CH3:39])[C@@H:20]([CH2:19][OH:18])[O:24][C@H:23]1[N:25]1[CH:32]=[C:31]([CH3:33])[C:29](=[O:30])[NH:28][C:26]1=[O:27]

참가 물질

5

반응물 2

HCID 175505N,N-Diethylethanamine trihydrofluorideHCID 235183415'-O-(tert-butyldiphenylsilyl)-3'-deoxy-3'-(iodomethyl)-2'-O-(2-methoxyethyl)-5-methyluridine

생성물 1

HCID 99228483'-Deoxy-2'-o-(2-methoxyethyl)-3'-methyl-5-methyluridine수율 97.2%

시약·촉매·용매 2

HCID 8028Tetrahydrofuran용매HCID 8857Ethyl Acetate용매

실험 절차

A solution of 5′-O-(tert-butyldiphenylsilyl)-3′-deoxy-3′-(iodomethyl)-2′-O-(2-methoxyethyl)-5-methyluridine (1.12 g, 1.65 mmol) and triethylamine trihydrofluoride (1.1 mL, 1.1 g, 6.7 mmol) in 20 mL of THF was stirred at rt for 24 h. The reaction mixture was diluted with 50 mL of ethyl acetate and washed with water and brine. The organic phase was dried (Na2SO4) and concentrated. The residue was purified by flash chromatography on a silica gel column. Gradient elution with 2:1, 1:2 and then 1:3 hexanes-EtOAc provided 504 mg of the title compound as a white foam.

후처리

  1. washwashed with water and brine
  2. dry with materialThe organic phase was dried (Na2SO4)
  3. concentrationconcentrated
  4. customThe residue was purified by flash chromatography on a silica gel column
  5. washGradient elution with 2:1, 1:2

출처 및 근거

ORD 기록
ord-51f7715792d441e9a2b563b21e4e0a0f
출처 데이터셋
uspto-grants-2006_09
특허 번호
US07105499B2

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