Difluoroacetic acid → (R)-1-(2-((7-chloropyrido[4,3-b]pyrazin-5-ylamino)methyl)morpholino)-2,2-difluoroethanone

HRID 57594

Reaktionsgleichung

Reaktionsgleichung von HRID 57594
[Cl:1][C:2]1[N:11]=[C:10]([NH:12][CH2:13][C@H:14]2[O:19][CH2:18][CH2:17][N:16]([C:20]([O:22]C(C)(C)C)=O)[CH2:15]2)[C:9]2[C:4](=[N:5][CH:6]=[CH:7][N:8]=2)[CH:3]=1.[F:27][CH:28]([F:32])C(O)=O.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>Cl.C(OCC)(=O)C>[Cl:1][C:2]1[N:11]=[C:10]([NH:12][CH2:13][C@@H:14]2[CH2:15][N:16]([C:20](=[O:22])[CH:28]([F:32])[F:27])[CH2:17][CH2:18][O:19]2)[C:9]2[C:4](=[N:5][CH:6]=[CH:7][N:8]=2)[CH:3]=1

Komponenten

7

Edukt 4

HCID 9788Difluoroacetic acidHCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 86706988(R)-tert-butyl 2-((7-chloropyrido[4,3-b]pyrazin-5-ylamino)methyl)morpholine-4-carboxylate

Produkt 1

HCID 86717395(R)-1-(2-((7-chloropyrido[4,3-b]pyrazin-5-ylamino)methyl)morpholino)-2,2-difluoroethanoneAusbeute 73,4 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 313Hydrochloric AcidLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

The (R)-tert-butyl 2-((7-chloropyrido[4,3-b]pyrazin-5-ylamino)methyl)morpholine-4-carboxylate (3.00 g, 8.0 mmol) was dissolved in the solution of HCl in ethyl acetate (20 mL), and the mixture was stirred at room temperature for 2 hours until TLC indicated Boc group was removed. The volatile materials were removed in vacuo and the residues were dissolved in dichloromethane. To the solution, difluoroacetic acid (1.15 g, 12 mmol), HATU (7.60 g, 20.0 mmol) and DIPEA (6.20 g, 48.0 mmol) were added subsequently and stirred at room temperature overnight. The mixture was purified by C18 column chromatography to give the desired amide as yellow solid (2.1 g). MS (m/z): 358 (M+H)+

Aufarbeitung

  1. customwas removed
  2. customThe volatile materials were removed in vacuo
  3. dissolutionthe residues were dissolved in dichloromethane
  4. stirringstirred at room temperature overnight
  5. customThe mixture was purified by C18 column chromatography

Quellen und Nachweise

ORD-Eintrag
ord-af6f85c86d074fb0b57f5217055f1022
Quelldatensatz
uspto-grants-2016_09
Patentnummer
US09434726B2

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