1,1'-Carbonyldiimidazole → 3-chloro-2-hydroxy-N-(3-{4-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide

HRID 403367Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 403367
[Cl:1][C:2]1[C:3]([OH:11])=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5]([OH:7])=O.C1N=CN(C(N2C=NC=C2)=O)C=1.[NH2:24][C:25]1[CH:26]=[C:27]([N:31]2[CH2:36][CH2:35][N:34]([C:37](=[O:49])[CH2:38][N:39]3[C:43]([CH3:44])=[CH:42][C:41]([C:45]([F:48])([F:47])[F:46])=[N:40]3)[CH2:33][CH2:32]2)[CH:28]=[CH:29][CH:30]=1.N1(C2CCCCCCCCCC2)CCCN=CCCCCC1>C(#N)C>[Cl:1][C:2]1[C:3]([OH:11])=[C:4]([CH:8]=[CH:9][CH:10]=1)[C:5]([NH:24][C:25]1[CH:30]=[CH:29][CH:28]=[C:27]([N:31]2[CH2:32][CH2:33][N:34]([C:37](=[O:49])[CH2:38][N:39]3[C:43]([CH3:44])=[CH:42][C:41]([C:45]([F:48])([F:47])[F:46])=[N:40]3)[CH2:35][CH2:36]2)[CH:26]=1)=[O:7]

Komponenten

6

Edukt 4

HCID 682631,1'-CarbonyldiimidazoleHCID 745853-Chlorosalicylic acidHCID 682800911-[4-(3-Amino-phenyl)-piperazin-1-yl]-2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-ethanoneHCID 1296629601,8-Diazabicycloundec-7ene

Produkt 1

HCID 682798923-chloro-2-hydroxy-N-(3-{4-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Reaktionsbedingungen

Temperatur
60 °C

Versuchsvorschrift

To a solution of 3-chloro-2-hydroxy-benzoic acid (0.11 g, 0.65 mmol) in acetonitrile (10 mL) is added carbodiimidazole (0.11 g, 0.71 mmol). After stirring the reaction mixture at 60° C. for 2 h, 1-[4-(3-amino-phenyl)-piperazin-1-yl]-2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-ethanone (0.20 g, 055 mmol) is added, followed by 1,8-diazabicycloundec-7-ene (0.1 mL, 0.82 mmol). After stirring overnight at 60° C., the reaction mixture is cooled down to RT and then solvent is evaporated and the resulting yellow oil is dissolved in ethylacetate (20 mL), washed with saturated aqueous sodium bicarbonate solution (20 mL), 1N HCl (20 mL) and brine (20 mL). The organic layer is dried over sodium sulfate, filtered, and evaporated under reduced pressure. Cyclohexane is added dropwise to a solution of crude mixture in 1 mL ethylacetate to give after filtration 3-chloro-2-hydroxy-N-(3-{4-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide (Compound No. I.ao.003) (0.090 g, 26%). 1H-NMR (400 MHz, MeOD): δ=2.31 (s, 3H), 3.21-3.28 (m, 2H), 3.31-3.39 (m, 2H), 3.77-3.83 (m, 4H), 5.25 (s, 2H), 6.47 (s, 1H), 6.87-6.89 (m, 1H), 6.92-6.99 (m, 1H), 7.17-7.22 (m, 1H), 7.28-7.33 (m, 1H), 7.41-7.42 (m, 1H), 7.57-7.61 (m, 1H), 7.90-7.92 (m, 1H). MS: m/z=522 (M+1).

Aufarbeitung

  1. stirringAfter stirring overnight at 60° C.
  2. temperaturethe reaction mixture is cooled down to RT
  3. customsolvent is evaporated
  4. dissolutionthe resulting yellow oil is dissolved in ethylacetate (20 mL)
  5. washwashed with saturated aqueous sodium bicarbonate solution (20 mL), 1N HCl (20 mL) and brine (20 mL)
  6. dry with materialThe organic layer is dried over sodium sulfate
  7. filtrationfiltered
  8. customevaporated under reduced pressure
  9. additionCyclohexane is added dropwise to a solution of crude mixture in 1 mL ethylacetate
  10. customto give
  11. filtrationafter filtration 3-chloro-2-hydroxy-N-(3-{4-[2-(5-methyl-3-trifluoromethyl-pyrazol-1-yl)-acetyl]-piperazin-1-yl}-phenyl)-benzamide (Compound No

Quellen und Nachweise

ORD-Eintrag
ord-b8437586a95d45a79f956cd8db24397a
Quelldatensatz
uspto-grants-2014_06
Patentnummer
US08748432B2

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