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The solvent was evaporated and the crude product purified by flash chromatography on silica gel (8% methanol/CH 2 Cl 2 ), yielding amide 25 (210 mg, 60%) as a yellow solid: 1 H NMR (300 MHz, CDCl 3 ): δ 8.35 (d, J=8.2 Hz, 1H), 8.21 (d, J=8.3 Hz, 1H), 7.63-7.52 (m, 2H), 7.51 (d, J=7.3 Hz, 1H), 7.44-7.39 (m, 1H), 7.37-7.27 (m, 6H), 7.16-7.02 (m, 3H), 5.24-5.16 (m, 1H), 5.13 (s, 2H), 4.68 (ddd, J=11.3, 10.3, 5.1 Hz, 1H), 4.56 (q, J=7.2 Hz, 1H), 4.19-4.09 (m, 1H), 3.90-3.76 (m, 5H), 3.74-3.68 (m, 1H), 3.63-3.46 (m, 5H), 3.45-3.24 (m, 3H), 2.80 (t, J=6.7 Hz, 2H), 2.70-2.35 (m, 8H), 1.81-1.67 (m, 2H), 1.63-1.53 (m, 1H), 1.35-1.20 (m, 6H), 1.21 (s, 9H), 1.31 (d, J=5.1 Hz, 3H), 0.87 (t, J=6.2 Hz, 3H)

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Pack Size:10 bottles

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