Lithium Hydroxide → 3-{[2-(4-Amino-furazan-3-yl)-1-phenyl-1H-imidazo[4,5-c]pyridin-6-yl]oxy}benzoic acid

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Reaktionsgleichung

[NH2:1][C:2]1[C:3]([C:7]2[N:8]([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[C:9]3[CH:14]=[C:13]([O:15][C:16]4[CH:17]=[C:18]([CH:23]=[CH:24][CH:25]=4)[C:19]([O:21]C)=[O:20])[N:12]=[CH:11][C:10]=3[N:26]=2)=[N:4][O:5][N:6]=1.[OH-].[Li+]>C1COCC1.O>[NH2:1][C:2]1[C:3]([C:7]2[N:8]([C:27]3[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=3)[C:9]3[CH:14]=[C:13]([O:15][C:16]4[CH:17]=[C:18]([CH:23]=[CH:24][CH:25]=4)[C:19]([OH:21])=[O:20])[N:12]=[CH:11][C:10]=3[N:26]=2)=[N:4][O:5][N:6]=1

Komponenten

Reaktionsbedingungen

Temperatur: 65 °C

Versuchsvorschrift

The product from Step 8 (0.22 g, 0.514 mmol) in THF (10 mL) was treated with a solution of 1N lithium hydroxide in water (1.5 mL) and heated to 65° C. for 10 h. The reaction mixture was cooled and concentrated and the residue was partitioned between water and ethyl acetate. The aqueous phase was extracted with ethyl acetate and the organic layers were combined, washed with brine and dried over Na2SO4 and concentrated to give the title compound (0.20 g, 94%). MS (ES+) m/e 415 [M+H]+.

Aufarbeitung

temperatureThe reaction mixture was cooled
concentrationconcentrated
customthe residue was partitioned between water and ethyl acetate
extractionThe aqueous phase was extracted with ethyl acetate
washwashed with brine
dry with materialdried over Na2SO4
concentrationconcentrated

Quellen und Nachweise

ORD-Eintrag: ord-c6c201431ada46059c324e8abe00b9b7
Quelldatensatz: uspto-grants-2009_06
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07547779B2

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