反应详情

Condensation of 15 (460 mg, 1.9 mmol) and 3-(2,4,6-trifluorophenyl)-propionaldehyde (360 mg, 1.9 mmol), following the procedure described in Example 45, Step 2, followed by conversion to the HCl salt, gave 6-(trans-4-{[3-(2,4,6-trifluorophenyl)propyl]methylamino}cyclohexyl)-3H-benzoxazol-2-one (275 mg, 32%), as a white solid: mp 235-238° C.; IR (KBr): 2949, 1772, 1632, 1603 cm−1; 1H NMR (300 MHz, DMSO-d6): δ 11.54 (s, 1H), 9.78 (s, 1H), 7.26-7.18 (m, 3H), 7.00 (s, 2H), 3.32-3.27 (m, 1H), 3.26-3.04 (m, 2H), 2.71 (d, J=5 Hz, 3H), 2.58-2.54 (m, 1H), 2.66-2.62 (m, 2H), 2.12-1.86 (m, 6H), 1.68-1.48 (m, 4H); ESI (m/z): 419 [M+H]+; HPLC: method A, 6.30 minutes (98.8%); Anal. Calcd for C23H25F3N2O2.HCl: C, 60.73; H, 5.76; N, 6.16. Found: C, 60.43; H, 5.71; N, 5.99.