Iodine → (2R,3R,4S,5S)-4-(benzoyloxy)-2-(6-chloro-2-iodo-9H-purin-9-yl)-5-[(ethylamino)carbonyl]tetrahydro-3-furanyl benzoate

HRID 1293042

반응식

HRID 1293042 반응식
N(OCCCC)=O.[C:8]([O:16][C@@H:17]1[C@H:21]([O:22][C:23](=[O:30])[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C@@H:20]([C:31]([NH:33][CH2:34][CH3:35])=[O:32])[O:19][C@H:18]1[N:36]1[CH:44]=[N:43][C:42]2[C:37]1=[N:38][C:39](N)=[N:40][C:41]=2[Cl:45])(=[O:15])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1.II.[I:49]CI>C1COCC1.[Cu]I>[C:8]([O:16][C@@H:17]1[C@H:21]([O:22][C:23](=[O:30])[C:24]2[CH:29]=[CH:28][CH:27]=[CH:26][CH:25]=2)[C@@H:20]([C:31]([NH:33][CH2:34][CH3:35])=[O:32])[O:19][C@H:18]1[N:36]1[CH:44]=[N:43][C:42]2[C:37]1=[N:38][C:39]([I:49])=[N:40][C:41]=2[Cl:45])(=[O:15])[C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][CH:10]=1

참가 물질

7

반응물 4

HCID 807IodineHCID 6346DiiodomethaneHCID 10996Butyl nitriteHCID 10143973(2R,3R,4S,5S)-2-(2-amino-6-chloro-9H-purin-9-yl)-4-(benzoyloxy)-5-[(ethylamino)carbonyl]-tetrahydro-3-furanyl benzoate

생성물 1

HCID 10189909(2R,3R,4S,5S)-4-(benzoyloxy)-2-(6-chloro-2-iodo-9H-purin-9-yl)-5-[(ethylamino)carbonyl]tetrahydro-3-furanyl benzoate수율 77.6%

시약·촉매·용매 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)촉매HCID 8028Tetrahydrofuran용매

실험 절차

n-Butyl nitrite (4.65 ml, 39.7 mmol) was added to a suspension of (2R,3R,4S,5S)-2-(2-amino-6-chloro-9H-purin-9-yl)-4-(benzoyloxy)-5-[(ethylamino)carbonyl]-tetrahydro-3-furanyl benzoate (Preparation 46) (8.10 g, 14.7 mmol), iodine (3.73 g, 14.7 mmol), copper(I) iodide (6.16 g, 32.3 mmol) and diiodomethane (12.55 ml, 155.8 mmol) in THF (100 ml) and the mixture was heated under reflux for 2.5 hours. The solution was allowed to cool to room temperature and the solvent was removed under reduced pressure. The residue was partitioned between 5% w/w aqueous sodium metabisulfite solution (100 ml) and dichloromethane (100 ml). The organic layer was separated, filtered through Arbocel (Trade Mark), dried over anhydrous magnesium sulphate and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel eluting with dichloromethane:methanol (99:1 by volume) to afford the title compound as a yellow foam (7.55 g).

후처리

  1. temperaturethe mixture was heated
  2. temperatureunder reflux for 2.5 hours
  3. customthe solvent was removed under reduced pressure
  4. customThe residue was partitioned between 5% w/w aqueous sodium metabisulfite solution (100 ml) and dichloromethane (100 ml)
  5. customThe organic layer was separated
  6. filtrationfiltered through Arbocel (Trade Mark)
  7. dry with materialdried over anhydrous magnesium sulphate
  8. customevaporated under reduced pressure
  9. customThe residue was purified by column chromatography on silica gel eluting with dichloromethane:methanol (99:1 by volume)

출처 및 근거

ORD 기록
ord-6608aef5ae174f8ba073020ace37a106
출처 데이터셋
uspto-grants-2007_07
특허 번호
US07238676B2

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