Triphenylphosphine → ethyl((1S)-5-{2-[6-(4-methoxyphenyl)-3-methyl-2-pyridinyl]ethoxy}-2,3-dihydro-1H-inden-1-yl)acetate

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Reaction Steps

To a solution of 2-[6-(4-methoxyphenyl)-3-methyl-2-pyridinyl]ethanol (Example 480, 0.15 g, 0.62 mmol) and ethyl [(1S)-5-hydroxy-2,3-dihydro-1H-inden-1-yl]acetate (Example 6, 0.11 g, 51 mmol) in THF (2.50 mL) were added triphenylphosphine (0.17 g, 0.67 mmol) and 1,1′-(azodicarbonyl)-dipiperidine (0.18 g, 67 mmol) under argon. The golden yellow mixture was stirred at rt for 18 h, and concentrated under reduced pressure. The title compound (0.094 g, 41%) was isolated after silica gel chromatography (2:1 hexanes/EtOAc). 1H NMR (400 MHz, CD2Cl2) δ 7.96 (d, 2H), 7.53-7.45 (m, 2H), 7.05 (d, 1H), 6.96 (d, 2H), 6.85-6.80 (m, 1H), 6.73 (dd, 1H), 4.48 (t, 2H), 4.14 (q, 2H), 3.86 (s, 3H), 3.51 (qt, 1H), 3.30 (t, 2H), 2.95-2.78 (m, 2H), 2.71 (dd, 1H), 2.45-2.33 (m, 5H), 1.80-1.70 (m, 1H), 1.28 (t, 3H).

Provenance & Evidence