Hydrochloric Acid → 1-methyl-2-{[1-(2-oxo-1,4-dihydro-2H-3,1-benzoxazin-6-yl)piperidin-4-yl]oxy}-1H-[4,4']bipyrimidinyl-6-one

HRID 1468782

Reaktionsgleichung

[CH3:1][N:2]1[C:7](=[O:8])[CH:6]=[C:5]([C:9]2[CH:14]=[CH:13][N:12]=[CH:11][N:10]=2)[N:4]=[C:3]1[O:15][CH:16]1[CH2:21][CH2:20][N:19]([C:22]2[CH:23]=[CH:24][C:25]3[N:30](COCC[Si](C)(C)C)[C:29](=[O:39])[O:28][CH2:27][C:26]=3[CH:40]=2)[CH2:18][CH2:17]1.Cl.O.C(=O)([O-])O.[Na+]>O1CCCC1>[CH3:1][N:2]1[C:7](=[O:8])[CH:6]=[C:5]([C:9]2[CH:14]=[CH:13][N:12]=[CH:11][N:10]=2)[N:4]=[C:3]1[O:15][CH:16]1[CH2:21][CH2:20][N:19]([C:22]2[CH:23]=[CH:24][C:25]3[NH:30][C:29](=[O:39])[O:28][CH2:27][C:26]=3[CH:40]=2)[CH2:18][CH2:17]1

Komponenten

Reaktionsbedingungen

Temperatur: 70 °C

Versuchsvorschrift

To a solution of 1-methyl-2-{[1-(2-oxo-1{[2-(trimethylsilyl)ethoxy]methyl}-1,4-dihydro-2H-3,1-benzoxazin-6-yl)piperidin-4-yl]oxy}-1H-[4,4′]bipyrimidinyl-6-one (78 mg, 0.14 mmol) in tetrahydrofuran (1.4 ml) was added 6N aqueous hydrochloric acid (1.4 ml, 8.4 mmol). The mixture was stirred at 70° C. for 3 hours. The mixture was poured into water. The aqueous solution was neutralized with sodium hydrogen carbonate. Extraction with dichloromethane was performed three times. The organic layer was dried over sodium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography (eluent; chloroform/methanol=98/2) to afford 1-methyl-2-{[1-(2-oxo-1,4-dihydro-2H-3,1-benzoxazin-6-yl)piperidin-4-yl]oxy}-1H-[4,4′]bipyrimidinyl-6-one as a pale yellow solid (22 mg, 0.051 mmol, 38%).

Aufarbeitung

extractionExtraction with dichloromethane
dry with materialThe organic layer was dried over sodium sulfate
concentrationconcentrated in vacuo
customThe residue was purified by silica gel column chromatography (eluent; chloroform/methanol=98/2)

Quellen und Nachweise

ORD-Eintrag: ord-a70659b8e5af4006971f8fb1139a386c
Quelldatensatz: uspto-grants-2015_04
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US09006232B2

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