tert-Butyldimethylsilyl trifluoromethanesulphonate → HCID 86690365、化合物

HRID 1183145ノート

反応式

HRID 1183145 の反応式
[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=13)[N:8]=[CH:7][N:6]([C@H:16]1[CH2:21][CH2:20][O:19][CH2:18][C@@H:17]1[OH:22])[C:5]2=[O:23].[CH3:24][C:25]([Si:28](OS(C(F)(F)F)(=O)=O)([CH3:30])[CH3:29])([CH3:27])[CH3:26].C([O-])(O)=O.[Na+]>C(Cl)Cl.CN(C1C=CN=CC=1)C>[Br:1][C:2]1[CH:3]=[C:4]2[C:9](=[C:10]3[CH:15]=[CH:14][CH:13]=[CH:12][C:11]=13)[N:8]=[CH:7][N:6]([C@H:16]1[CH2:21][CH2:20][O:19][CH2:18][C@@H:17]1[O:22][Si:28]([C:25]([CH3:27])([CH3:26])[CH3:24])([CH3:30])[CH3:29])[C:5]2=[O:23]

参加物

6

反応物 3

HCID 123564tert-Butyldimethylsilyl trifluoromethanesulphonateHCID 516892Sodium BicarbonateHCID 699279036-bromo-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one

生成物 1

HCID 86690365HCID 86690365、化合物

試薬・触媒・溶媒 2

HCID 142844-(Dimethylamino)pyridine触媒HCID 6344Dichloromethane溶媒

実験手順

To a solution of 6-bromo-3-[(3R,4S)-3-hydroxytetrahydro-2H-pyran-4-yl]benzo[h]quinazolin-4(3H)-one (1.00 g, 2.67 mmol) in CH2Cl2 (40 mL) was added DMAP (1.68 g, 13.3 mmol) and then tert-butyl dimethylsilyl trifluoromethane sulfonate (1.84 mL, 8.00 mmol) and the reaction was stirred overnight. The reaction was diluted with saturated, aqueous NaHCO3 and extracted 1× with CH2Cl2. The organics were washed with brine, dried over MgSO4, filtered, concentrated, and dried. The oily residue was purified via silica gel chromatography, eluting with 5-55% ethyl acetate in hexanes to provide 1,5-anhydro-3-(6-bromo-4-oxobenzo quinazolin-3(4H)-yl)-2-O-[tert-butyl(dimethyl)silyl]-3,4-dideoxy-L-threo-pentitol that gave a mass ion (ES+) of 490.8 for [M+H]+.

後処理

  1. extractionextracted 1× with CH2Cl2
  2. washThe organics were washed with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customdried
  7. customThe oily residue was purified via silica gel chromatography
  8. washeluting with 5-55% ethyl acetate in hexanes

出典と根拠

ORDレコード
ord-3cd387651afd4c289d3c527f4a8d5b6b
出典データセット
uspto-grants-2014_03
特許番号
US08664234B2

反応ノート

読み込み中…