Sodium Carbonate → 4-(3-amino-2-methylphenyl)-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide

HRID 1811086Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1811086
Br[C:2]1[C:14]2[C:13]3[C:8](=[CH:9][C:10]([C:15]([N:17]4[CH2:22][CH2:21][N:20]([CH3:23])[CH2:19][CH2:18]4)=[O:16])=[CH:11][CH:12]=3)[NH:7][C:6]=2[C:5]([C:24]([NH2:26])=[O:25])=[CH:4][CH:3]=1.C(=O)([O-])[O-].[Na+].[Na+].[CH3:33][C:34]1[C:40](B2OC(C)(C)C(C)(C)O2)=[CH:39][CH:38]=[CH:37][C:35]=1[NH2:36]>C1(C)C(CCO)=CC=CC=1>[NH2:36][C:35]1[C:34]([CH3:33])=[C:40]([C:2]2[C:14]3[C:13]4[C:8](=[CH:9][C:10]([C:15]([N:17]5[CH2:22][CH2:21][N:20]([CH3:23])[CH2:19][CH2:18]5)=[O:16])=[CH:11][CH:12]=4)[NH:7][C:6]=3[C:5]([C:24]([NH2:26])=[O:25])=[CH:4][CH:3]=2)[CH:39]=[CH:38][CH:37]=1

Komponenten

5

Edukt 3

HCID 10340Sodium CarbonateHCID 467380052-Methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline2×HCID 468335224-bromo-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide

Produkt 1

HCID 468338134-(3-amino-2-methylphenyl)-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamideAusbeute 65 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 882672-Methylphenethyl alcoholLösungsmittel

Versuchsvorschrift

A suspension of 4-bromo-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide (Example 1-1, 300 mg, 0.722 mmol), tetrakis-(triphenylphosphine)palladium (33.4 mg, 0.029 mmol), 2 M aqueous sodium carbonate (0.9 mL, 1.806 mmol), and 2-methyl-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (Intermediate 50-1, 253 mg, 1.084 mmol) in toluene-ethanol (4:1, 15 mL) was purged with nitrogen for 5 min and then heated at reflux for 7.5 h. The mixture was concentrated and the residue was partitioned between chloroform and water. The aqueous phase was extracted with chloroform and the combined organic phases were washed with brine, dried and concentrated. The residue was purified by column chromatography (eluting with DCM-2 M methanolic ammonia, gradient from 100:0 to 95:5) to provide 4-(3-amino-2-methylphenyl)-7-(4-methylpiperazine-1-carbonyl)-9H-carbazole-1-carboxamide as a white solid (207 mg, 65%). 1H NMR (400 MHz, DMSO-d6) δ 11.65 (s, 1H) 8.16 (br. s., 1H) 7.97 (d, J=7.91 Hz, 1H) 7.78 (s, 1H) 7.48 (br. s., 1H) 7.08 (t, J=7.80 Hz, 1H) 6.81-6.97 (m, 4H) 6.49-6.65 (m, 1H) 3.12-3.25 (m, 4H) 2.92-3.10 (m, 4H) 2.76 (s, 3H) 1.70 (s, 3H). Mass spectrum m/z 442.2 (M+H)+.

Aufarbeitung

  1. customwas purged with nitrogen for 5 min
  2. temperatureheated
  3. temperatureat reflux for 7.5 h
  4. concentrationThe mixture was concentrated
  5. customthe residue was partitioned between chloroform and water
  6. extractionThe aqueous phase was extracted with chloroform
  7. washthe combined organic phases were washed with brine
  8. customdried
  9. concentrationconcentrated
  10. customThe residue was purified by column chromatography (eluting with DCM-2 M methanolic ammonia, gradient from 100:0 to 95:5)

Quellen und Nachweise

ORD-Eintrag
ord-b3a70844f4454448b0fb940e0b83208f
Quelldatensatz
uspto-grants-2013_01
Patentnummer
US08362065B2

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