4-Methylpentyn-3-ol → 1-(5-(((tert-butyldiphenylsilyl)oxy)methyl)-1,6-bis(methylsulfonyl)-1H-indol-2-yl)-2-methylpropan-1-ol

HRID 1051831

反応式

HRID 1051831 の反応式
[Si:1]([O:18][CH2:19][C:20]1[C:25]([S:26]([CH3:29])(=[O:28])=[O:27])=[CH:24][C:23]([NH:30][S:31]([CH3:34])(=[O:33])=[O:32])=[C:22](I)[CH:21]=1)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH3:36][CH:37]([CH3:42])[CH:38]([OH:41])[C:39]#[CH:40]>C1COCC1.CCN(CC)CC.CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.[Cu]I>[Si:1]([O:18][CH2:19][C:20]1[CH:21]=[C:22]2[C:23](=[CH:24][C:25]=1[S:26]([CH3:29])(=[O:28])=[O:27])[N:30]([S:31]([CH3:34])(=[O:33])=[O:32])[C:39]([CH:38]([OH:41])[CH:37]([CH3:42])[CH3:36])=[CH:40]2)([C:14]([CH3:17])([CH3:16])[CH3:15])([C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][CH:9]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

参加物

8

反応物 2

HCID 982794-Methylpentyn-3-olHCID 89814617N-(4-(((tert-butyldiphenylsilyl)oxy)methyl)-2-iodo-5-(methylsulfonyl)phenyl)methanesulfonamide

生成物 1

HCID 898159981-(5-(((tert-butyldiphenylsilyl)oxy)methyl)-1,6-bis(methylsulfonyl)-1H-indol-2-yl)-2-methylpropan-1-ol収率 90%

試薬・触媒・溶媒 5

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)触媒HCID 178418476HCID 178418476、化合物触媒HCID 8028Tetrahydrofuran溶媒HCID 8471Triethylamine溶媒HCID 8857Ethyl Acetate溶媒

反応条件

温度
65 °C

実験手順

PdCl2(PPh3)2 (277 mg, 0.38 mmol) and CuI (73 mg, 0.38 mmol) were added to a solution of N-(4-(((tert-butyldiphenylsilyl)oxy)methyl)-2-iodo-5-(methylsulfonyl)phenyl)methanesulfonamide (2.45 g, 3.8 mmol) in THF (20 mL) and Et3N (10 mL). The mixture was purged with nitrogen for 10 min followed by addition of 4-methylpent-1-yn-3-ol (745 mg, 7.6 mmol) and stirred at 65° C. for 8 h. The reaction mixture was diluted with EtOAc (50 mL) and washed with 1N HCl (50 mL). The organic layer was separated, and the aq layer was extracted with EtOAc (3×50 mL). The combined organic solution was washed with brine, dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by flash chromatography over silica gel eluting with EtOAc/hexanes (3/7) to provide 1-(5-(((tert-butyldiphenylsilyl)oxy)methyl)-1,6-bis(methylsulfonyl)-1H-indol-2-yl)-2-methylpropan-1-ol (2.1 g, 90% yield). LC-MS m/z 614 [M+H]+. 1H NMR (400 MHz, CDCl3): δ 8.68 (s, 1H), 7.90 (s, 1H), 7.71-7.67 (s, 4H), 7.46-7.35 (m, 6H), 6.77 (s, 1H), 5.21 (d, J=3.2 Hz, 2H), 6.94 (t, J=6.8 Hz, 1H), 3.22 (s, 3H), 2.90 (s, 3H), 2.61 (d, J=6.8 Hz, 1H), 2.37-2.32 (m, 1H), 1.12 (s, 9H), 1.05 (d, J=6.8 Hz, 3H), 1.03 (d, J=6.8 Hz, 3H). 13C NMR (100 MHz, CDCl3): δ 147.25, 135.54, 135.28, 135.00, 133.66, 133.00, 132.89, 129.96, 127.85, 121.68, 115.96, 108.69, 72.30, 62.98, 44.33, 41.59, 32.88, 26.89, 20.23, 19.30, 17.61.

後処理

  1. customThe mixture was purged with nitrogen for 10 min
  2. washwashed with 1N HCl (50 mL)
  3. customThe organic layer was separated
  4. extractionthe aq layer was extracted with EtOAc (3×50 mL)
  5. washThe combined organic solution was washed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. customThe residue was purified by flash chromatography over silica gel eluting with EtOAc/hexanes (3/7)

出典と根拠

ORDレコード
ord-7b63f60ff4194c1d9ddf31b360b6393d
出典データセット
uspto-grants-2016_07
特許番号
US09388190B2

関連ノート

読み込み中…