Reaktion #44487

Reaktionsgleichung

solution

1-Cycloheptyl-4,4-dimethyl-5-oxo-pyrrolidine-3-carbaldehyde

2-fluoro-N-methylaniline

triacetoxyborohydride

→

title compound

1-cycloheptyl-4-{[(2-fluorophenyl)(methyl)amino]methyl}-3,3-dimethylpyrrolidin-2-one

Lösungsmittel

tetrahydrofuran

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationThe reaction was filtered
2. 2
   Sonstigesolvent evaporated in vacuo
3. 3
   SonstigeThe crude reaction mixture
4. 4
   Sonstigewas purified by preparative reverse phase HPLC on a Waters Symmetry C8 column (25 mm×100 mm, 7 um particle size)

Vorschrift

A solution of Example 4A (30 mg, 0.12 mmoles), 2-fluoro-N-methylaniline (19 mg, 0.15 mmoles) MP-triacetoxyborohydride (137 mg, 0.3 mmoles) in tetrahydrofuran (1.25 mL) was stirred for twelve hours. The reaction was filtered and solvent evaporated in vacuo. The crude reaction mixture was purified by preparative reverse phase HPLC on a Waters Symmetry C8 column (25 mm×100 mm, 7 um particle size) using a gradient of 20% to 100% acetonitrile:water (0.1% trifluoroacetic acid) over eighteen minutes at a flow rate of 40 mL/minute to provide the title compound. 1H NMR (500 MHz, CDCl3) δ ppm 6.90-7.10 (m, 4H), 4.01-4.13 (m, 1H), 3.32 (dd, J=9.88, 7.50 Hz, 1H), 3.11-3.21 (m, 2H), 3.09 (t, J=9.36 Hz, 1H), 2.83 (s, 3H), 2.17-2.27 (m, 1H), 1.59-1.70 (m, 6H), 1.45-1.57 (m, 6H), 1.16 (s, 3H), 0.95 (s, 3H). MS (APCI+) m/z 347.2 (M+H)+.

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