1,1'-(Chlorophenylmethylene)bis(4-methoxybenzene) → 1-(3-O-Benzyl-5-O-(4,4'-dimethoxytrityl)-4-C-(p-toluenesulphonyloxymethyl)-beta-D-Xylofuranosyl)thymine

HRID 6779

반응식

HRID 6779 반응식
[CH2:1]([O:8][C@H:9]1[C@@:13]([CH2:16][O:17][S:18]([C:21]2[CH:26]=[CH:25][C:24]([CH3:27])=[CH:23][CH:22]=2)(=[O:20])=[O:19])([CH2:14][OH:15])[O:12][C@@H:11]([N:28]2[CH:36]=[C:34]([CH3:35])[C:32](=[O:33])[NH:31][C:29]2=[O:30])[C@@H:10]1[OH:37])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:38][O:39][C:40]1[CH:61]=[CH:60][C:43]([C:44](Cl)([C:53]2[CH:58]=[CH:57][CH:56]=[CH:55][CH:54]=2)[C:45]2[CH:50]=[CH:49][C:48]([O:51][CH3:52])=[CH:47][CH:46]=2)=[CH:42][CH:41]=1>N1C=CC=CC=1.ClCCl>[CH2:1]([O:8][C@H:9]1[C@@:13]([CH2:16][O:17][S:18]([C:21]2[CH:26]=[CH:25][C:24]([CH3:27])=[CH:23][CH:22]=2)(=[O:20])=[O:19])([CH2:14][O:15][C:44]([C:53]2[CH:58]=[CH:57][CH:56]=[CH:55][CH:54]=2)([C:45]2[CH:50]=[CH:49][C:48]([O:51][CH3:52])=[CH:47][CH:46]=2)[C:43]2[CH:42]=[CH:41][C:40]([O:39][CH3:38])=[CH:61][CH:60]=2)[O:12][C@@H:11]([N:28]2[CH:36]=[C:34]([CH3:35])[C:32](=[O:33])[NH:31][C:29]2=[O:30])[C@@H:10]1[OH:37])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

5

반응물 2

HCID 968311,1'-(Chlorophenylmethylene)bis(4-methoxybenzene)2회HCID 106738211-(3-O-Benzyl-4-C-(p-Toluenesulphonyloxymethyl)beta-D-xylofuranosyl)thymine

생성물 1

HCID 106530721-(3-O-Benzyl-5-O-(4,4'-dimethoxytrityl)-4-C-(p-toluenesulphonyloxymethyl)-beta-D-Xylofuranosyl)thymine수율 75%

시약·촉매·용매 2

HCID 1049Pyridine용매HCID 6344Dichloromethane용매

실험 절차

To a solution of nucleoside 6 (3.66 g, 6.88 mmol) in anhydrous pyridine (25 cm3) was added N,N-(dimethylamino)pyridine (0.84 g, 6.81 mmol) and 4,4′-dimethoxytrityl chloride (3.5 g, 13.2 mmol) and the mixture was stirred for 23 h at room temperature. Additional N,N-(dimethylamino)pyridine (0.250 g, 2.06 mmol) and 4,4′-dimethoxytrityl chloride (0.700 g, 2.06 mmol) was added, and stirring was continued for 36 h at room temperature. Ice cold H2O (50 cm3) was added and the reaction mixture was diluted with dichloromethane (150 cm3). The organic phase was separated and washed with saturated aqueous solutions of sodium hydrogen carbonate (25 cm3×3) and brine (40 cm3×3), dried (Na2SO4) and evaporated to dryness under reduced pressure. The residue was purified by silica gel column chromatography using dichloromethane/methanol/pyridine (0.75–1.5% methanol; 0.5% pyridine, v/v/v) as eluent to afford nucleoside 7 (4.28 g, 75%) as a white solid material after evaporation of the solvents under reduced pressure.

후처리

  1. stirringstirring
  2. waitwas continued for 36 h at room temperature
  3. customThe organic phase was separated
  4. washwashed with saturated aqueous solutions of sodium hydrogen carbonate (25 cm3×3) and brine (40 cm3×3)
  5. dry with materialdried (Na2SO4)
  6. customevaporated to dryness under reduced pressure
  7. customThe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-e288918a92354e2f82ef20876e9c4e95
출처 데이터셋
uspto-grants-2006_08
특허 번호
US07084125B2

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