Methanol → N-[1-[(2R,4S,5R)-4-hydroxy-5-(trityloxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]benzamide

HRID 1488550

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HRID 1488550 반응식
[C:1]([NH:9][C:10]1[CH:23]=[CH:22][N:13]([C@@H:14]2[O:21][C@H:18]([CH2:19][OH:20])[C@@H:16]([OH:17])[CH2:15]2)[C:12](=[O:24])[N:11]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.N1C=CC=CC=1.[C:31](Cl)([C:44]1[CH:49]=[CH:48][CH:47]=[CH:46][CH:45]=1)([C:38]1[CH:43]=[CH:42][CH:41]=[CH:40][CH:39]=1)[C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1.CO>C(Cl)Cl>[C:31]([O:20][CH2:19][C@H:18]1[O:21][C@@H:14]([N:13]2[CH:22]=[CH:23][C:10]([NH:9][C:1](=[O:8])[C:2]3[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=3)=[N:11][C:12]2=[O:24])[CH2:15][C@@H:16]1[OH:17])([C:32]1[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1)([C:44]1[CH:45]=[CH:46][CH:47]=[CH:48][CH:49]=1)[C:38]1[CH:39]=[CH:40][CH:41]=[CH:42][CH:43]=1

참가 물질

6

반응물 4

HCID 887MethanolHCID 1049PyridineHCID 6456Trityl chlorideHCID 9797617N4-Benzoyl-2'-deoxycytidine

생성물 1

HCID 494349N-[1-[(2R,4S,5R)-4-hydroxy-5-(trityloxymethyl)oxolan-2-yl]-2-oxopyrimidin-4-yl]benzamide수율 26%

시약·촉매·용매 1

HCID 6344Dichloromethane용매

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온도
100 °C

실험 절차

3.31 g (10 mmol) of N-benzoyl-2'-deoxycytidine were added to 25 ml of pyridine, and then 3.07 g (11 mmol) of trityl chloride were added to the suspension. The resulting suspension was stirred at 100° C. for 1 hour, after which it was allowed to cool to room temperature. The pyridine was then removed by distillation under reduced pressure. The resulting residue was dissolved in a mixture of ethyl acetate and a saturated aqueous solution of sodium chloride. The organic layer was separated and washed twice, each time with a saturated aqueous solution of sodium chloride. The solution was then dried over anhydrous magnesium sulfate, after which the solvent was removed by distillation under reduced pressure. The resulting residue was purified by column chromatography through silica gel (Lober column Si-60, Size C) using a gradient elution method, with mixtures of methanol and methylene chloride ranging from 2:98 to 5:95 by volume as the eluent, to give 1.47 g (yield 26%) of the title compound.

후처리

  1. temperatureto cool to room temperature
  2. customThe pyridine was then removed by distillation under reduced pressure
  3. dissolutionThe resulting residue was dissolved in a mixture of ethyl acetate
  4. customThe organic layer was separated
  5. washwashed twice
  6. dry with materialThe solution was then dried over anhydrous magnesium sulfate
  7. customafter which the solvent was removed by distillation under reduced pressure
  8. customThe resulting residue was purified by column chromatography through silica gel (Lober column Si-60, Size C)
  9. washa gradient elution method

출처 및 근거

ORD 기록
ord-97ab072974a24bf8a72f463fde61becc
출처 데이터셋
uspto-grants-1997_10
특허 번호
US05674856

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