1-{4-[3-Cyclopentyl-4-(2,2-dimethyl-6-oxo-6H-[1,3]dioxin-4-yl)-3-hydroxy-butyl]-2-fluoro-phenyl}-cyclopropanecarbonitrile → 2-{4-[2-(2-Cyclopentyl-4,6-dioxo-tetrahydro-pyran-2-yl)-ethyl]-2-fluoro-phenyl)-2-ethyl-butyronitrile

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Reaction Steps

The desired product was prepared analogously to Example A(86) step 5, substituting 2-{4-[3-Cyclopentyl-4-(2,2-dimethyl-6-oxo-6H-[1,3]dioxin-4-yl)-3-hydroxy-butyl]-2-fluoro-phenyl}-2-ethyl-butyronitrile (0.84 g, 1.8 mmol) from step 3 below in place of 1-{4-[3-Cyclopentyl-4-(2,2-dimethyl-6-oxo-6H-[1,3]dioxin-4-yl)-3-hydroxy-butyl]-2-fluoro-phenyl}-cyclopropanecarbonitrile. Yield: 0.393 g, 54%. 1H NMR (CDCl3) δ: 1.01 (t, J=7.45 Hz, 6H), 1.62-1.90 (br, 8H), 2.03-2.17 (br, 4H), 2.20-2.29 (br, 2H), 2.37 (p, J=9.35 Hz, 1H), 2.75-2.82 (m, 2H), 2.86 (d, J=7.58 Hz, 2H), 3.53 (d, J=2.02 Hz, 2H), 6.94 (dd, J1 =13.01 Hz, J2=1.64 Hz, 1H), 7.04 (dd, J1=7.83 Hz, J2=1.77 Hz, 1H), 7.57 (t, J=8.21 Hz, 1H).

Provenance & Evidence