Dimethylacetamide → 2-(2,6-Dichlorophenyl)-4-(6-methylpyrimidin-4-ylamino)-2H-pyrazolo[4,3-c]pyridine-7-carbonitrile

HRID 626735Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 626735
Br[C:2]1[C:3]2[C:4](=[CH:16][N:17]([C:19]3[C:24]([Cl:25])=[CH:23][CH:22]=[CH:21][C:20]=3[Cl:26])[N:18]=2)[C:5]([NH:8][C:9]2[CH:14]=[C:13]([CH3:15])[N:12]=[CH:11][N:10]=2)=[N:6][CH:7]=1.C[C:28]([N:30](C)C)=O>[C-]#N.[C-]#N.[Zn+2].C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[Cl:26][C:20]1[CH:21]=[CH:22][CH:23]=[C:24]([Cl:25])[C:19]=1[N:17]1[CH:16]=[C:4]2[C:5]([NH:8][C:9]3[CH:14]=[C:13]([CH3:15])[N:12]=[CH:11][N:10]=3)=[N:6][CH:7]=[C:2]([C:28]#[N:30])[C:3]2=[N:18]1

Komponenten

5

Edukt 2

HCID 31374DimethylacetamideHCID 69671843[7-Bromo-2-(2,6-dichlorophenyl)-2H-pyrazolo[4,3-c]pyridin-4-yl]-(6-methylpyrimidin-4-yl)-amine

Produkt 1

HCID 696713182-(2,6-Dichlorophenyl)-4-(6-methylpyrimidin-4-ylamino)-2H-pyrazolo[4,3-c]pyridine-7-carbonitrileAusbeute 17 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 11186Zinc cyanide (Zn(CN)2)KatalysatorHCID 178418397HCID 178418397, VerbindungKatalysator

Versuchsvorschrift

A suspension of [7-bromo-2-(2,6-dichlorophenyl)-2H-pyrazolo[4,3-c]pyridin-4-yl]-(6-methylpyrimidin-4-yl)-amine (100 mg, 0.22 mmol), Zn(CN)2 (52 mg, 0.44 mmol), and Pd(PPh3)4 (25 mg, 0.022 mmol), in DMA (1.0 mL) was sealed in a microwave vial, purged with nitrogen, and irradiated in a microwave reactor at 150° C. for 30 minutes. The reaction mixture was cooled and partitioned between ethyl acetate and water. The organic layer was washed with brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The resultant residue was purified by silica gel flash chromatography (0-70% ethyl acetate in cyclohexane), to afford the title compound as an off-white solid (15 mg, 17% yield). 1H NMR (400 MHz, DMSO-d6): δ 11.32 (br s, 1H), 9.36 (s, 1H), 8.80 (d, J=1.0 Hz, 1H), 8.61 (s, 1H), 8.46 (s, 1H), 7.86 (d, J=1.0 Hz, 1H), 7.83 (s, 1H), 7.74 (dd, J=7.4, 1.8 Hz, 1H), 2.50 (s, 3H). LCMS (Method B): RT=3.84 min, m/z: 396 [M+H+].

Aufarbeitung

  1. custompurged with nitrogen
  2. customirradiated in a microwave reactor at 150° C. for 30 minutes
  3. temperatureThe reaction mixture was cooled
  4. custompartitioned between ethyl acetate and water
  5. washThe organic layer was washed with brine
  6. dry with materialdried over anhydrous sodium sulfate
  7. concentrationconcentrated under reduced pressure
  8. customThe resultant residue was purified by silica gel flash chromatography (0-70% ethyl acetate in cyclohexane)

Quellen und Nachweise

ORD-Eintrag
ord-4dceda6478fd4012baf05d02a5aacc49
Quelldatensatz
uspto-grants-2016_04
Patentnummer
US09309240B2

Notizen zur Reaktion

Wird geladen…