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Acetic acid, azido-, ethyl ester → ethyl(4-{(S)-[(tert-butylsulfinyl)amino][5-(2,2,2-trifluoroethoxy)pyridin-2-yl]methyl}-1H-1,2,3-triazol-1-yl)acetate

HRID 877381
ノート
印刷プレビュー

反応式

HRID 877381 の反応式
[N:1]([CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6])=[N+:2]=[N-:3].[CH3:10][C:11]([S:14]([NH:16][C@@H:17]([C:20]1[CH:25]=[CH:24][C:23]([O:26][CH2:27][C:28]([F:31])([F:30])[F:29])=[CH:22][N:21]=1)[C:18]#[CH:19])=[O:15])([CH3:13])[CH3:12].O=C1O[C@H]([C@H](CO)O)C([O-])=C1O.[Na+].C(O)CCC.O>O>[CH2:8]([O:7][C:5](=[O:6])[CH2:4][N:1]1[CH:19]=[C:18]([C@H:17]([NH:16][S:14]([C:11]([CH3:13])([CH3:12])[CH3:10])=[O:15])[C:20]2[CH:25]=[CH:24][C:23]([O:26][CH2:27][C:28]([F:31])([F:29])[F:30])=[CH:22][N:21]=2)[N:3]=[N:2]1)[CH3:9]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 69480Acetic acid, azido-, ethyl esterHCID 22253497Water butanolHCID 23667548Sodium AscorbateHCID 866689592-methyl-N-{(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]prop-2-ynyl}propane-2-sulfinamide

生成物 1

HCID 131732597ethyl(4-{(S)-[(tert-butylsulfinyl)amino][5-(2,2,2-trifluoroethoxy)pyridin-2-yl]methyl}-1H-1,2,3-triazol-1-yl)acetate収率 53%

試薬・触媒・溶媒 1

HCID 962Water溶媒

実験手順

To a 50 ml round bottom flask equipped with a magnetic stir bar were added ethyl azidoacetate (0.193 g, 1.495 mmol), 2-methyl-N-{(1R)-1-[5-(2,2,2-trifluoroethoxy)pyridin-2-yl]prop-2-yn-1-yl}propane-2-sulfinamide (0.500 g, 1.495 mmol), freshly made 1.0 N sodium ascorbate (0.150 ml, 0.150 mmol), and 1.0 N Cu2SO4 (0.150 ml, 0.150 mmol) into 6.0 ml of a mixed solvent BuOH/H2O (1:1). The resulting solution was stirred at room temperature for 16 hours. The reaction mixture was diluted with water and extracted with EtOAc. The combined organic layers were washed with brine, dried over anhydrous Na2SO4 and filtered. The filtrate was concentrated in vacuum. Purification by flash chromatography (SiO2, 50-80% ethyl acetate in hexanes, gradient) gave the title compound as a light yellow solid (0.365 g, 53%). 1H NMR (CDCl3, 400 MHz) δ 8.291 (d, J=2.93 Hz, 1H), 7.634 (s, 1H), 7.452 (d, J=8.79 Hz, 1H), 7.247 (ABq, J=3.03 Hz, 1H), 5.879 (d, J=5.50 Hz, 1H), 5.349 (d, J=5.31 Hz, 1H), 5.125 (ABq, J=7.49 Hz, 2H), 4.381 (q, J=7.87 Hz, 2H), 4.255 (q, J=7.14 Hz, 2H), 1.290 (t, J=7.14 Hz, 3H), 1.271 (s, 9H). ES-MS [M+1]+: 464.1.

後処理

  1. customTo a 50 ml round bottom flask equipped with a magnetic stir bar
  2. extractionextracted with EtOAc
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over anhydrous Na2SO4
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated in vacuum
  7. customPurification by flash chromatography (SiO2, 50-80% ethyl acetate in hexanes, gradient)

出典と根拠

ORDレコード
ord-65a36dae87f042619714d4f9f65455cd
出典データセット
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08987310B2

反応ノート

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