反应详情

Combine 4-(3-amino-phenoxy)-cis-2-methyl-piperidine-1-carboxylic acid tert-butyl ester isomer 2 (preparation 39, 0.29 g), triethyl amine (95 mg), and 2-chloro-4-fluorobenzoyl chloride (0.201 g) in THF (10 mL) and stir at room temperature. After 18 hr., partition between ethyl acetate and saturated aqueous NaCl, dry over anhydrous sodium sulfate, evaporate and dry in vacuum to give the title compound (0.464 g). Mass spectrum (electrospray) m/z=461 (M−1); 1H NMR (CDCl3): 7.87 (br s, 1H), 7.72 (dd, 1H), 7.37 (t, 1H), 7.19 (dd, 1H), 7.13 (dd, 1H), 7.02 (ddd, 1H), 6.97 (dd, 1H), 6.64 (dd, 1H), 4.63 (m, 1H), 4.28 (m, 1H), 3.81 (m, 1H), 3.20 (m, 1H), 1.88 (m, 2H), 1.81 (m, 1H), 1.67 (m, 1H), 1.40 (s, 9H), 1.24 (d, J=7.1 Hz, 3H). (file: mn4-a01246-76).

1. custom, partition between ethyl acetate and saturated aqueous NaCl
2. dry with materialdry over anhydrous sodium sulfate
3. customevaporate
4. customdry in vacuum