Water → (S)-8-((2-amino-4-methylpentyl)oxy)-9-hydroxy-6-methylbenzo[c][2,7]naphthyridin-5(6H)-one

HRID 1398301Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1398301
Br[C:2]1[C:17]([O:18][CH2:19][C@@H:20]([NH:25]C(=O)OC(C)(C)C)[CH2:21][CH:22]([CH3:24])[CH3:23])=[CH:16][C:5]2[N:6]([CH3:15])[C:7](=[O:14])[C:8]3[C:13]([C:4]=2[CH:3]=1)=[CH:12][CH:11]=[N:10][CH:9]=3.CCCC[N+](CCCC)(CCCC)CCCC.[OH-].O.CC1C=CC2C(=C([OH:63])C=CC=2)N=1>CS(C)=O.[Cu]I>[NH2:25][C@@H:20]([CH2:21][CH:22]([CH3:23])[CH3:24])[CH2:19][O:18][C:17]1[C:2]([OH:63])=[CH:3][C:4]2[C:13]3[C:8](=[CH:9][N:10]=[CH:11][CH:12]=3)[C:7](=[O:14])[N:6]([CH3:15])[C:5]=2[CH:16]=1

Komponenten

7

Edukt 4

HCID 962WaterHCID 132242-Methyl-8-hydroxyquinolineHCID 2723671Tetrabutylammonium HydroxideHCID 86710307(S)-tert-butyl (1-((9-bromo-6-methyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate

Produkt 1

HCID 73213726(S)-8-((2-amino-4-methylpentyl)oxy)-9-hydroxy-6-methylbenzo[c][2,7]naphthyridin-5(6H)-oneAusbeute 55 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)KatalysatorHCID 679Dimethyl SulfoxideLösungsmittel

Reaktionsbedingungen

Temperatur
120 °C

Versuchsvorschrift

A mixture of (S)-tert-butyl (1-((9-bromo-6-methyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate (0.05 g, 0.099 mmol) (as prepared in Ex. 3, Part A), tetra-N-butylammonium hydroxide. 30H2O (0.463 g, 1.784 mmol) and water (1.5 mL) was added over 0.1 h to a stirred solution of copper(I) iodide (1.89 mg, 9.91 μmol) and 2-methyl 8-quinolinol (3.16 mg, 0.020 mmol) in DMSO (1 mL). The reaction mixture was heated to 120° C. and stirred for 14 h. The resulting mixture was cooled to room temperature. The crude product was purified by reverse phase HPLC (10 mM ammonium acetate) to afford a (S)-8-((2-amino-4-methylpentyl)oxy)-9-hydroxy-6-methylbenzo[c][2,7]naphthyridin-5(6H)-one (0.004 g, 0.011 mmol, 12% yield) as a brown solid. LC/MS (ESI) m/e 342.2 [(M+H)+, calcd for C19H24N3O3, 342.2]; HPLC retention time (method F): tR=1.62 min. HPLC retention time (method B): tR=5.88 min. 1H NMR (400 MHz, CD3OD) δ 9.39 (s, 1H), 8.62 (d, J=6.00 Hz, 1H), 7.96 (d, J=5.60 Hz, 1H), 7.56 (s, 1H), 6.73 (s, 1H), 3.80 (s, 3H), 3.67-3.70 (m, 1H), 3.49-3.59 (m, 2H), 1.81-1.85 (m, 1H), 1.56-1.63 (m, 2H), 1.05 (d, J=6.80 Hz, 3H), 0.98 (d, J=6.80 Hz, 3H).

Aufarbeitung

  1. customas prepared in Ex
  2. temperatureThe resulting mixture was cooled to room temperature
  3. customThe crude product was purified by reverse phase HPLC (10 mM ammonium acetate)

Quellen und Nachweise

ORD-Eintrag
ord-5bb5b92574054b2a93a18965e4b05959
Quelldatensatz
uspto-grants-2014_12
Patentnummer
US08901305B2

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