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Cesium carbonate → 2-[5-Cyclopropyl-2-(2-ethyl-5-methyl-2H-pyrazol-3-ylamino)-pyridin-4-ylamino]-N-methylbenzamide

HRID 62511
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Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 62511
Cl[C:2]1[CH:7]=[C:6]([NH:8][C:9]2[CH:18]=[CH:17][CH:16]=[CH:15][C:10]=2[C:11]([NH:13][CH3:14])=[O:12])[C:5]([CH:19]2[CH2:21][CH2:20]2)=[CH:4][N:3]=1.[CH2:22]([N:24]1[C:28]([NH2:29])=[CH:27][C:26]([CH3:30])=[N:25]1)[CH3:23].C([O-])([O-])=O.[Cs+].[Cs+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].O1CCOCC1>[CH:19]1([C:5]2[C:6]([NH:8][C:9]3[CH:18]=[CH:17][CH:16]=[CH:15][C:10]=3[C:11]([NH:13][CH3:14])=[O:12])=[CH:7][C:2]([NH:29][C:28]3[N:24]([CH2:22][CH3:23])[N:25]=[C:26]([CH3:30])[CH:27]=3)=[N:3][CH:4]=2)[CH2:21][CH2:20]1
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Komponenten

7

Edukt 4

HCID 10796Cesium carbonate2×HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 27683831-Ethyl-3-methyl-1H-pyrazol-5-amineHCID 575169032-(2-Chloro-5-cyclopropyl-pyridin-4-ylamino)-N-methyl-benzamide

Produkt 1

HCID 462152692-[5-Cyclopropyl-2-(2-ethyl-5-methyl-2H-pyrazol-3-ylamino)-pyridin-4-ylamino]-N-methylbenzamide
Ausbeute 20,5 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 9811564Bis(dibenzylideneacetone)palladiumKatalysatorHCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

To a 10 mL microwave tube were added 2-(2-chloro-5-cyclopropyl-pyridin-4-ylamino)-N-methyl-benzamide (0.075 g, 0.25 mmol, 1 eq), 2-ethyl-5-methyl-2H-pyrazol-3-ylamine (0.035 g, 0.27 mmol, 1.1 eq), Cs2CO3 (0.23 g, 0.70 mmol, 2.8 eq) and 1,4-dioxane (3 mL) and the resulting mixture was degassed with N2 for 30 minutes. To this mixture was added Pd2(dba)3 (0.008 g, 0.007 mmol, 0.03 eq) and xanthphos (0.009 g, 0.015 mmol, 0.06 eq) and this mixture was degassed again with N2 for another 10 minutes. The resulting reaction mixture was irradiated in a CEM microwave at 110° C. and 150 W for 45 min. The progress of the reaction was monitored by LCMS. After completion of the reaction, Cs2CO3 was removed by filtration and the filtrate was concentrated under reduced pressure to give a crude product. It was purified using column chromatography over neutral alumina using 0.2% MeOH-DCM as the eluant. The solid compound so obtained was washed with diethyl ether and hexane to give the title compound as a white solid (20 mg, 20%). 1H-NMR (400 MHz, DMSO-d6): δ 0.50-0.62 (m, 2H), 0.88-0.99 (m, 2H), 1.15-1.28 (m, 3H), 1.55-1.65 (m, 1H), 2.07 (s, 3H), 2.76-2.77 (d, 3H, J=4.36 Hz), 3.82-3.95 (m, 2H), 5.95 (s, 1H), 6.68 (s, 1H), 6.99-7.10 (m, 1H), 7.42-7.50 (m, 1H), 7.50-7.55 (m, 1H) 7.64-7.66 (d, 1H, J=7.6 Hz), 7.71 (s, 1H), 8.30 (s, 1H), 8.55-8.70 (brs, 1H), 9.95 (s, 1H). LC-MS [M+H]+=391.4.

Aufarbeitung

  1. customthe resulting mixture was degassed with N2 for 30 minutes
  2. customthis mixture was degassed again with N2 for another 10 minutes
  3. customThe resulting reaction mixture
  4. customwas irradiated in a CEM microwave at 110° C.
  5. customwas removed by filtration
  6. concentrationthe filtrate was concentrated under reduced pressure
  7. customto give a crude product
  8. customIt was purified
  9. customThe solid compound so obtained
  10. washwas washed with diethyl ether and hexane

Quellen und Nachweise

ORD-Eintrag
ord-fd16098087664d5b85239b27e11537e0
Quelldatensatz
uspto-grants-2016_09
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US09446034B2

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