Carbon Tetrachloride → N-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(6-chloro-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-amine

HRID 595510ノート

反応式

HRID 595510 の反応式
[Si:1]([O:8][CH2:9][CH2:10][CH2:11][NH:12][C:13]([NH:15][NH:16][C:17](=O)[C:18]1[C:23]([NH:24][CH:25]([CH3:27])[CH3:26])=[CH:22][C:21]([Cl:28])=[N:20][CH:19]=1)=[O:14])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CCN(CC)CC.C(Cl)(Cl)(Cl)Cl>C(Cl)Cl>[Si:1]([O:8][CH2:9][CH2:10][CH2:11][NH:12][C:13]1[O:14][C:17]([C:18]2[CH:19]=[N:20][C:21]([Cl:28])=[CH:22][C:23]=2[NH:24][CH:25]([CH3:27])[CH3:26])=[N:16][N:15]=1)([C:4]([CH3:7])([CH3:5])[CH3:6])([CH3:2])[CH3:3]

参加物

6

反応物 4

HCID 5943Carbon TetrachlorideHCID 8471TriethylamineHCID 11776TriphenylphosphineHCID 89689674N-(3-((tert-butyldimethylsilyl)oxy)propyl)-2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinecarboxamide

生成物 1

HCID 89690916N-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(6-chloro-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-amine

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒2 回

反応条件

温度
50 °C

実験手順

N-(3-((tert-butyldimethylsilyl)oxy)propyl)-2-(6-chloro-4-(isopropylamino)nicotinoyl)hydrazinecarboxamide (50) (1 g, 2.2 mmol) in DCM (40 mL) was stirred at room temperature. Added triphenyl phosphine (6 mmol, 3 equiv.), Et3N (18 mol, 8 equiv.) and CCl4 (6 mmol, 3 equiv.). The reaction mixture was heated at 50° C. for 3 h. Reaction mixture was diluted using DCM. The DCM layer was washed with water. The organic layer was collected, dried over Na2SO4, filtered and concentrated. The crude material was purified by column chromatography through silica gel and EtOAc:Pet. Ether as eluent to provide the desired compound, N-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(6-chloro-4-(isopropylamino)pyridin-3-yl)-1,3,4-oxadiazol-2-amine. LC/MS: Acquity BEH C18 2.1×50 mm, 1.8 micron; Solvent A=0.1% TFA in water; Solvent B=0.1% TFA in ACN; gradient 0-100% B over 2 min; retention time: 1.2 min; LCMS (ES-API), m/z 426.9 (M+H).

後処理

  1. customReaction mixture
  2. additionwas diluted
  3. washThe DCM layer was washed with water
  4. customThe organic layer was collected
  5. dry with materialdried over Na2SO4
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customThe crude material was purified by column chromatography through silica gel and EtOAc

出典と根拠

ORDレコード
ord-9467d221fe82453288738766f0eac16b
出典データセット
uspto-grants-2016_01
特許番号
US09242976B2

反応ノート

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