Triethylamine → HCID 57802546, Verbindung

HRID 2102415Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2102415
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]2[C:14]([C:15]([NH:17][NH2:18])=[O:16])=[N:13][N:12]3[CH:19]=[CH:20][N:21]=[C:11]3[CH:10]=2)=[C:4]([F:22])[CH:3]=1.BrC1C=C[C:27]([NH:30]C2C(C(O)=O)=NN3C=CN=C3C=2)=C(F)C=1.CCN=C=NCCCN(C)C.C1C=CC2N(O)N=NC=2C=1.NN.CCN(CC)CC>CC(N(C)C)=O.CCOC(C)=O>[NH2:30][C:27]1[O:16][C:15]([C:14]2[C:9]([NH:8][C:5]3[CH:6]=[CH:7][C:2]([Br:1])=[CH:3][C:4]=3[F:22])=[CH:10][C:11]3[N:12]([CH:19]=[CH:20][N:21]=3)[N:13]=2)=[N:17][N:18]=1

Komponenten

9

Edukt 6

HCID 8471TriethylamineHCID 9321HydrazineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 757711-HydroxybenzotriazoleHCID 595193857-(4-Bromo-2-fluorophenylamino)-imidazo[1,2-b]pyridazine-6-carboxylic acidHCID 69006850HCID 69006850, Verbindung

Produkt 1

HCID 57802546HCID 57802546, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8857Ethyl AcetateLösungsmittelHCID 31374DimethylacetamideLösungsmittel

Versuchsvorschrift

Preparation of 7-(4-bromo-2-fluorophenylamino)-imidazo[1,2-b]pyridazine-6-carboxylic acid hydrazide: A mixture of 7-(4-bromo-2-fluorophenylamino)-imidazo[1,2-b]pyridazine-6-carboxylic acid (1.00 equiv), EDCI (1.50 equivalents), and HOBt (1.50 equivalents) in DMA is stirred for 30 minutes at room temperature under N2. Hydrazine (3.00 equivalents) is added followed by Et3N (2.50 equivalents). After the reaction mixture is stirred for 16 hours at room temperature, it is diluted with EtOAc and washed with saturated NH4Cl solution, saturated NaHCO3 solution and saturated NaCl. The organic layer is dried (Na2SO4) and concentrated under reduced pressure to yield the desired product. The product may be purified by flash column chromatography if further purification is necessary.

Aufarbeitung

  1. stirringAfter the reaction mixture is stirred for 16 hours at room temperature
  2. washwashed with saturated NH4Cl solution, saturated NaHCO3 solution and saturated NaCl
  3. dry with materialThe organic layer is dried (Na2SO4)
  4. concentrationconcentrated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-afa3e6fd081d498d9962f0afce73ba1b
Quelldatensatz
uspto-grants-2009_08
Patentnummer
US07576072B2

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