Trifluoroacetic acid → 2-Fluoro-4-(2-(piperidin-4-yl)-benzo[d]oxazol-5-yl)-benzamide 2,2,2-trifluoroacetate

HRID 710160Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 710160
[C:1]([C:4]1[CH:9]=[CH:8][C:7]([C:10]2[CH:11]=[CH:12][C:13]3[O:17][C:16]([CH:18]4[CH2:23][CH2:22][N:21](C(OC(C)(C)C)=O)[CH2:20][CH2:19]4)=[N:15][C:14]=3[CH:31]=2)=[CH:6][C:5]=1[F:32])(=[O:3])[NH2:2].[F:33][C:34]([F:39])([F:38])[C:35]([OH:37])=[O:36]>C(Cl)Cl>[F:33][C:34]([F:39])([F:38])[C:35]([OH:37])=[O:36].[F:32][C:5]1[CH:6]=[C:7]([C:10]2[CH:11]=[CH:12][C:13]3[O:17][C:16]([CH:18]4[CH2:23][CH2:22][NH:21][CH2:20][CH2:19]4)=[N:15][C:14]=3[CH:31]=2)[CH:8]=[CH:9][C:4]=1[C:1]([NH2:2])=[O:3]

Komponenten

4

Edukt 2

HCID 6422Trifluoroacetic acidHCID 71114210Tert-butyl 4-[5-(4-carbamoyl-3-fluorophenyl)benzo[d]oxazol-2-yl]piperidine-1-carboxylate

Produkt 1

HCID 710895472-Fluoro-4-(2-(piperidin-4-yl)-benzo[d]oxazol-5-yl)-benzamide 2,2,2-trifluoroacetate

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel2×

Versuchsvorschrift

Tert-butyl 4-[5-(4-carbamoyl-3-fluorophenyl)benzo[d]oxazol-2-yl]piperidine-1-carboxylate (190 mg, 0.32 mmol) dissolved in DCM (40 ml) and added trifluoroacetic acid (1.5 ml). This mixture stirred at rt for 3 h. After completion of the reaction, DCM removed on rotavapour and residue was co-distilled with ether to obtain 2-fluoro-4-(2-(piperidin-4-yl)-benzo[d]oxazol-5-yl)-benzamide 2,2,2-trifluoroacetate (190 mg). 2-Fluoro-4-(2-(piperidin-4-yl)-benzo[d]oxazol-5-yl)-benzamide 2,2,2-trifluoroacetate (190 mg, 0.42 mmol) was dissolved in DMF (7 ml) and added isobutyric acid (47 mg, 0.46 mmol), EDC.HCl (200 mg, 1.04 mmol), HOBt (70 mg, 0.5 mmol) and TEA (0.7 ml, 3.3 mmol). After completion of the reaction, water added to the reaction mixture to obtain solid. Solid was filtered and washed with ether to obtain the titled compound (120 mg) as a brown solid. M.P.: 193-196° C. MS (m/z): 410.2 [M+H]+.

Aufarbeitung

  1. customremoved on rotavapour and residue

Quellen und Nachweise

ORD-Eintrag
ord-b845b9e95dc04a0da8fe2ddf894529cc
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09181214B2

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