Hydrochloric Acid → HCID 54435224, 화합물

HRID 434266노트

반응식

HRID 434266 반응식
[CH2:1]([O:8][C@:9]1([CH:37]=[CH2:38])[C@@H:13]([CH2:14][O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[O:12][C@@H:11]([N:23]2[CH:31]=[C:29]([CH3:30])[C:27](=[O:28])[NH:26][C:24]2=[O:25])[C@@H:10]1[O:32]S(C)(=O)=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.O.[OH-].[Na+].Cl>C(O)C>[CH2:1]([O:8][C@:9]1([CH:37]=[CH2:38])[C@@H:13]([CH2:14][O:15][CH2:16][C:17]2[CH:22]=[CH:21][CH:20]=[CH:19][CH:18]=2)[O:12][C@@H:11]([N:23]2[CH:31]=[C:29]([CH3:30])[C:27](=[O:28])[NH:26][C:24]2=[O:25])[C@H:10]1[OH:32])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

참가 물질

6

반응물 4

HCID 313Hydrochloric AcidHCID 962WaterHCID 14798Sodium HydroxideHCID 15332425HCID 15332425, 화합물

생성물 1

HCID 54435224HCID 54435224, 화합물수율 74.4%

시약·촉매·용매 1

HCID 702Ethanol용매

실험 절차

A solution of nucleoside 25 (2.53 g, 4.66 mmol) in a mixture of ethanol (50 cm3), water (50 cm3) and 1 M aqueous sodium hydroxide (15 cm3) was stirred under reflux for 16 h. The mixture was neutralised using dilute aqueous hydrochloric acid, the solvent was evaporated under reduced pressure, and the residue was extracted with dichloromethane (3×120 cm3). The combined extract was washed with saturated aqueous sodium hydrogencarbonate (3×150 cm3) and dried (Na2SO4). The solvent was removed under reduced pressure and the residue was purified by silica gel column chromatography using dichloromethane/methanol (99:1) as eluent to give 26 as a white foam (1.61 g, 74%). δH (CDCl3) 9.89 (1H, br s, NH), 7.50 (1H, d, J 1.1, 6-H), 7.41-7.26 (Bn), 6.28 (1H, d, J 2.8, 1′-H), 6.05 (1H, dd, J 11.1, 17.9, 1″-H), 5.58-5.50 (2H, m, 2″-Ha, 2″-Hb), 4.98 (1H, d, J 9.0, 2′-OH), 4.64-4.31 (6H, m, 2′-H, 4′-H, Bn), 3.73 (2H, m, 5′-Ha, 5′-Hb), 1.73 (1H, d, J 0.6, CH3). δC (CDCl3) 165.1 (C-4), 150.5 (C-2), 138.4, 138.0, 136.7 (C-6, Bn), 130.4 (C-1″), 128.8, 128.6, 128.5, 128.1, 128.0, 127.8 (Bn), 120.6 (C-2″), 108.1 (C-5), 88.6 (C-1′), 87.9 (C-3′), 87.2 (C-4′), 73.7 (C-2′), 71.8 (C-5′), 69.7, 66.3 (Bn), 12.3 (CH3). Found: C, 66.8; H, 6.2; N, 5.9; C26H28N2O8 requires C, 67.2; H, 6.1; N, 6.0.

후처리

  1. temperatureunder reflux for 16 h
  2. customthe solvent was evaporated under reduced pressure
  3. extractionthe residue was extracted with dichloromethane (3×120 cm3)
  4. extractionThe combined extract
  5. washwas washed with saturated aqueous sodium hydrogencarbonate (3×150 cm3)
  6. dry with materialdried (Na2SO4)
  7. customThe solvent was removed under reduced pressure
  8. customthe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-ddb80f01264c43f8955147a11ffc82ab
출처 데이터셋
uspto-grants-2003_12
특허 번호
US06670461B1

반응 노트

불러오는 중…