Butyl iodide → 6-Amino-2-(4-chloro-2-fluoro-3-methoxyphenyl)-5-vinyl-pyrimidine-4-carboxylic acid butyl ester

HRID 506479

Reaktionsgleichung

[NH2:1][C:2]1[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([Cl:14])=[C:10]([O:15][CH3:16])[C:9]=2[F:17])[N:5]=[C:4]([C:18]([OH:20])=[O:19])[C:3]=1[CH:21]=[CH2:22].I[CH2:24][CH2:25][CH2:26][CH3:27].C(=O)([O-])[O-].[Li+].[Li+]>CN(C=O)C>[CH2:24]([O:19][C:18]([C:4]1[C:3]([CH:21]=[CH2:22])=[C:2]([NH2:1])[N:7]=[C:6]([C:8]2[CH:13]=[CH:12][C:11]([Cl:14])=[C:10]([O:15][CH3:16])[C:9]=2[F:17])[N:5]=1)=[O:20])[CH2:25][CH2:26][CH3:27]

Komponenten

Reaktionsbedingungen

Temperatur: 60 °C

Versuchsvorschrift

6-Amino-2-(4-chloro-2-fluoro-3-methoxyphenyl)-5-vinyl-pyrimidine-4-carboxylic acid (0.150 g, 0.46 mmol), iodobutane (0.111 g, 0.60 mmol), and lithium carbonate (0.044 g, 0.6 mmol) were combined in DMF (1.5 mL) and heated at 60° C. overnight. The cooled reaction mixture was concentrated and partitioned between ethyl acetate and water. The organic phase was dried and concentrated. The product was purified by flash chromatography on silica gel (ethyl acetate/hexane gradient) to yield the title compound (0.092 g, 52.3% yield): 1H NMR (CDCl3) δ 7.65 (dd, 1H), 7.19 (dd, 1H), 7.75 (dd, 1H), 5.62-5.67 (m, 2H), 5.35 (br s, 2H), 4.34 (t, 3H), 3.99 (dd, 3H), 1.74 (m, 2H), 1.45 (m, 2H), 0.97 (t, 3H).

Aufarbeitung

customThe cooled reaction mixture
concentrationwas concentrated
custompartitioned between ethyl acetate and water
customThe organic phase was dried
concentrationconcentrated
customThe product was purified by flash chromatography on silica gel (ethyl acetate/hexane gradient)

Quellen und Nachweise

ORD-Eintrag: ord-29f11c222e294825a58f8f2c83b37cc0
Quelldatensatz: uspto-grants-2010_08
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07786044B2

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