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Water → (R)-tert-Butyl 3-(4-(2-(cyclopropanecarboxamido)pyrazolo[1,5-a]pyridin-4-yl)phenoxy)pyrrolidine-1-carboxylate

HRID 873337
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Reaktionsgleichung

Reaktionsgleichung von HRID 873337
Br[C:2]1[C:3]2[N:4]([N:8]=[C:9]([NH:11][C:12]([CH:14]3[CH2:16][CH2:15]3)=[O:13])[CH:10]=2)[CH:5]=[CH:6][CH:7]=1.CC1(C)C(C)(C)OB([C:25]2[CH:43]=[CH:42][C:28]([O:29][C@@H:30]3[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])[CH2:31]3)=[CH:27][CH:26]=2)O1.C([O-])([O-])=O.[Na+].[Na+].O>O1CCOCC1>[CH:14]1([C:12]([NH:11][C:9]2[CH:10]=[C:3]3[C:2]([C:25]4[CH:43]=[CH:42][C:28]([O:29][C@@H:30]5[CH2:34][CH2:33][N:32]([C:35]([O:37][C:38]([CH3:39])([CH3:40])[CH3:41])=[O:36])[CH2:31]5)=[CH:27][CH:26]=4)=[CH:7][CH:6]=[CH:5][N:4]3[N:8]=2)=[O:13])[CH2:16][CH2:15]1
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Komponenten

6

Edukt 4

HCID 962WaterHCID 10340Sodium CarbonateHCID 70979567N-(4-bromopyrazolo[1,5-a]pyridin-2-yl)cyclopropanecarboxamideHCID 86710535(R)-tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)pyrrolidine-1-carboxylate

Produkt 1

HCID 86710536(R)-tert-Butyl 3-(4-(2-(cyclopropanecarboxamido)pyrazolo[1,5-a]pyridin-4-yl)phenoxy)pyrrolidine-1-carboxylate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 312751,4-DioxaneLösungsmittel

Versuchsvorschrift

N-(4-Bromopyrazolo[1,5-a]pyridin-2-yl)cyclopropanecarboxamide (265 mg, 0.95 mmol), (R)-tert-butyl 3-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenoxy)pyrrolidine-1-carboxylate (442 mg, 1.14 mmol), PdCl2dppf (39 mg, 0.047 mmol) and Na2CO3 (501 mg, 4.73 mmol) were stirred in 1,4-dioxane (15 ml) and water (3 ml) and heated at 100° C. for 2 h. The reaction mixture was cooled to room temperature and filtered through celite. The residue was partitioned between EtOAc and water and the aqueous phase was extracted with EtOAc. The combined organics were dried (MgSO4), filtered and concentrated in vacuo to give (R)-tert-Butyl 3-(4-(2-(cyclopropanecarboxamido)pyrazolo[1,5-a]pyridin-4-yl)phenoxy)pyrrolidine-1-carboxylate as a brown oil which was used in the next step without further purification.

Aufarbeitung

  1. filtrationfiltered through celite
  2. customThe residue was partitioned between EtOAc and water
  3. extractionthe aqueous phase was extracted with EtOAc
  4. dry with materialThe combined organics were dried (MgSO4)
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-df30dcaca0aa44a094237461751cc708
Quelldatensatz
uspto-grants-2015_03
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08975406B2

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