3-Methyl-1,2-cyclopentanedione → 5-(6-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]-4-fluorophenyl}hex-5-ynylimino)-2-methylcyclopent-1-enol

HRID 572901

Reaktionsgleichung

Reaktionsgleichung von HRID 572901
[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH:10]([O:25][CH:26]1[CH2:31][CH2:30][N:29]([CH3:32])[CH2:28][CH2:27]1)[C:11]1[CH:12]=[C:13]([C:18]#[C:19][CH2:20][CH2:21][CH2:22][CH2:23][NH2:24])[CH:14]=[CH:15][C:16]=1[F:17].C([O-])(=O)C([O-])=O.[CH3:39][CH:40]1[CH2:44][CH2:43][C:42](=O)[C:41]1=[O:46]>C(O)C.O.[OH-].[Na+]>[NH:1]1[C:5]2[CH:6]=[CH:7][CH:8]=[CH:9][C:4]=2[N:3]=[C:2]1[CH:10]([O:25][CH:26]1[CH2:27][CH2:28][N:29]([CH3:32])[CH2:30][CH2:31]1)[C:11]1[CH:12]=[C:13]([C:18]#[C:19][CH2:20][CH2:21][CH2:22][CH2:23][N:24]=[C:42]2[C:41]([OH:46])=[C:40]([CH3:39])[CH2:44][CH2:43]2)[CH:14]=[CH:15][C:16]=1[F:17]

Komponenten

7

Edukt 3

HCID 612093-Methyl-1,2-cyclopentanedioneHCID 71081OxalateHCID 668361616-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]-4-fluorophenyl}hex-5-ynylamine

Produkt 1

HCID 668358735-(6-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]-4-fluorophenyl}hex-5-ynylimino)-2-methylcyclopent-1-enol

Reagenzien, Katalysatoren, Lösungsmittel 3

HCID 702EthanolLösungsmittelHCID 962WaterLösungsmittelHCID 14798Sodium HydroxideLösungsmittel

Versuchsvorschrift

A mixture of 6-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]-4-fluorophenyl}hex-5-ynylamine, oxalate (example 557, 50 mg), 3-methyl-1,2-cyclopentanedione (11.8 mg) in ethanol (2 mL) is refluxed for 2 h. The mixture is then cooled, diluted with water and 1N sodium hydroxide and extracted with ethyl acetate. Pooled extracts are dried over magnesium sulfate and concentrated under reduced pressure. The residue is purified by chromatography over silica gel (gradient dichloromethane/methanol/ammonia from 100/0/0.5 to 95/5/0.5) to afford 5-(6-{3-[(1H-benzimidazol-2-yl)(1-methylpiperidin-4-yloxy)methyl]-4-fluorophenyl}hex-5-ynylimino)-2-methylcyclopent-1-enol. TLC (Eluent: CH2Cl2/MeOH/NH4OH 95/5/0.5) Rf=0.30.

Aufarbeitung

  1. temperatureis refluxed for 2 h
  2. temperatureThe mixture is then cooled
  3. extractionextracted with ethyl acetate
  4. dry with materialPooled extracts are dried over magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue is purified by chromatography over silica gel (gradient dichloromethane/methanol/ammonia from 100/0/0.5 to 95/5/0.5)

Quellen und Nachweise

ORD-Eintrag
ord-34c2fae662ec423da2c304810998ff4d
Quelldatensatz
uspto-grants-2015_05
Patentnummer
US09029357B2

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