Diisopropylethylamine → 6-Bromo-4-(tetrahydro-2H-pyran-4-yl)-3,4-dihydropyrazino[2,3-b]pyrazin-2(1H)-one

HRID 717163Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 717163
Br[C:2]1[C:3]([NH:9][C:10](=[O:13])[CH2:11]I)=[N:4][CH:5]=[C:6]([Br:8])[N:7]=1.C(N(C(C)C)CC)(C)C.[O:23]1[CH2:28][CH2:27][CH:26]([NH2:29])[CH2:25][CH2:24]1>C(#N)C>[Br:8][C:6]1[N:7]=[C:2]2[N:29]([CH:26]3[CH2:27][CH2:28][O:23][CH2:24][CH2:25]3)[CH2:11][C:10](=[O:13])[NH:9][C:3]2=[N:4][CH:5]=1

Komponenten

5

Edukt 3

HCID 81531DiisopropylethylamineHCID 4192234-AminotetrahydropyranHCID 58298325N-(3,5-dibromopyrazin-2-yl)-2-iodoacetamide

Produkt 1

HCID 866446486-Bromo-4-(tetrahydro-2H-pyran-4-yl)-3,4-dihydropyrazino[2,3-b]pyrazin-2(1H)-oneAusbeute 40 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6342AcetonitrileLösungsmittel

Versuchsvorschrift

To a solution of N-(3,5-dibromopyrazin-2-yl)-2-iodoacetamide (See Example 5.B) (6.6 g, 15.8 mmol) and diisopropylethylamine (4.0 g, 31.6 mmol) in acetonitrile (50 mL) was added tetrahydro-2H-pyran-4-amine (6.4 g, 63.2 mmol) and the mixture was stirred at ambient temperature for 16 h. The solvent was removed under reduced pressure and the residue which was purified by chromatography on silica gel (5-20% ethyl acetate in petroleum ether) to give the title compound (1.98 g, 40% yield). MS (ESI) m/z 313.1 [M+1]+.

Aufarbeitung

  1. customThe solvent was removed under reduced pressure
  2. customthe residue which was purified by chromatography on silica gel (5-20% ethyl acetate in petroleum ether)

Quellen und Nachweise

ORD-Eintrag
ord-b22a3453c8b9488e9a45a7778aebe9b5
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09193692B2

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