反应详情

A solution of 3-[(1-benzhydryl-azetidin-3-yl)-methoxy-methyl]-1H-indole-5-carbonitrile, triethylsilane (5.5 ml, 34 mmol) and trifluoroacetic acid (6.6 mL, 86 mmol) in methylene chloride (40 mL) was refluxed overnight. The reaction was poured into ice and neutralized with concentrated ammonium hydroxide. The mixture was extracted with methylene chloride (3×100 mL). The organic layer was washed with water (3×80 mL), dried over anhydrous sodium sulfate, filtered and solvent removed under vacuum. The crude oil was column chromatographed on a Biotage (40% ethyl acetate-hexane/hexane). The product-containing fractions were concentrated under vacuum to give 0.56 g (86%) of the title compound as a clear oil. MS ES m/e 378 (M+H)+; 1H NMR (500 MHz, DMSO-D6): 2.74-2.78 δ (M, 3H), 2.96 δ (d J=6.7 Hz, 2H), 3.21 δ (t, J=6.4 Hz, 2H), 4.4 δ (s, 1H), 7.15-7.17 δ (m, 2H), 7.24-7.29 δ (m, 5H), 7.38-7.418 δ (m, 5H), 7.47 δ (d, J=8.4 Hz, 1H), 8.07 δ (s, 1H), 11.37 δ (br, 1H).

1. extractionThe mixture was extracted with methylene chloride (3×100 mL)
2. washThe organic layer was washed with water (3×80 mL)
3. dry with materialdried over anhydrous sodium sulfate
4. filtrationfiltered
5. customsolvent removed under vacuum
6. customchromatographed on a Biotage (40% ethyl acetate-hexane/hexane)
7. concentrationThe product-containing fractions were concentrated under vacuum