2-Bromo-4-methylpyridine → N-[3,5-bis(trifluoromethyl)phenyl]-4-(3-{[(2-bromopyridin-4-yl)methyl]-oxy}pyrazin-2-yl)piperazine-1-carboxamide

HRID 907560Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 907560
CC(C)([O-])C.[K+].[Br:7][C:8]1[CH:13]=[C:12]([CH2:14][OH:15])[CH:11]=[CH:10][N:9]=1.BrC1C=C(C)C=CN=1.[F:24][C:25]([F:53])([F:52])[C:26]1[CH:27]=[C:28]([NH:36][C:37]([N:39]2[CH2:44][CH2:43][N:42]([C:45]3[C:50](Cl)=[N:49][CH:48]=[CH:47][N:46]=3)[CH2:41][CH2:40]2)=[O:38])[CH:29]=[C:30]([C:32]([F:35])([F:34])[F:33])[CH:31]=1>C(O)(C)(C)C>[F:53][C:25]([F:24])([F:52])[C:26]1[CH:27]=[C:28]([NH:36][C:37]([N:39]2[CH2:44][CH2:43][N:42]([C:45]3[C:50]([O:15][CH2:14][C:12]4[CH:11]=[CH:10][N:9]=[C:8]([Br:7])[CH:13]=4)=[N:49][CH:48]=[CH:47][N:46]=3)[CH2:41][CH2:40]2)=[O:38])[CH:29]=[C:30]([C:32]([F:33])([F:34])[F:35])[CH:31]=1

Komponenten

6

Edukt 4

HCID 27340872-Bromo-4-methylpyridineHCID 14512957(2-Bromopyridin-4-yl)methanolHCID 23665647Potassium tert-butoxideHCID 59013946HCID 59013946, Verbindung

Produkt 1

HCID 59013856N-[3,5-bis(trifluoromethyl)phenyl]-4-(3-{[(2-bromopyridin-4-yl)methyl]-oxy}pyrazin-2-yl)piperazine-1-carboxamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6386tert-ButanolLösungsmittel

Versuchsvorschrift

To a solution of potassium t-butoxide (0.073 g, 0.66 mmol) and t-butanol (0.5 mL) was added dropwise with stirring (2-bromo-pyridin-4-yl)-methanol (0.082 g, 0.44 mmol, prepared in the similar fashion as Example 16a from 2-Bromo-4-methyl-pyridine), followed by 3′-chloro-2,3,5,6-tetrahydro-[1,2′]bipyrazinyl-4-carboxylic acid (3,5-bis-trifluoromethyl-phenyl)-amide (0.100 g, 0.22 mmol; prepared in Example 16b). The mixture was stirred at room temperature overnight. LC/MS analysis indicated formation of the desired product. The mixture was concentrated in vacuo, and the crude product was purified on preparative HPLC to afford N-[3,5-bis(trifluoromethyl)phenyl]-4-(3-{[(2-bromopyridin-4-yl)methyl]-oxy}pyrazin-2-yl)piperazine-1-carboxamide (5 mg). 1H NMR (CDCl3) 8.40 (s, 1H), 7.95 (s, 2H), 7.8 (s, 1H), 7.6 (s, 1H), 7.58 (m, 2H), 7.24 (m, 1H), 6.62 (s, 1H), 5.4 (s, 2H), 3.6 (m, 4H), 1.6 (m, 4H) ppm.

Quellen und Nachweise

ORD-Eintrag
ord-5a117fb493614df2b047115caf3f36a8
Quelldatensatz
uspto-grants-2011_09
Patentnummer
US08013156B2

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