1-Bromopentane → 6-(2-pentyl-2,3,4,5-tetrahydro-1H-benzo[c]azepin-7-yloxy)nicotinamide

Participants

Reaction Conditions

Reaction Steps

Mix 6-(2,3,4,5-tetrahydro-1H-benzo[c]azepin-7-yloxy)nicotinamide (Example 447, Part E, 0.300 g, 1.06 mmol), K2CO3 (0.366 g, 2.65 mmol), and 1-bromopentane (0.176 g, 1.16 mmol) in DMF (5.3 mL). Beat at 70° C. overnight and then increase the temperature to 100° C. for additional two hours. Cool the reaction mixture to room temperature and add ethyl acetate (150 mL). Wash with 1.0 N NaOH (1×50 mL), brine (1×50 mL), dry the organic layer over Na2SO4, filter and concentrate. Purify by flash chromatography eluting with 7% to 15% (2.0 M NH3 in methanol) in ethyl acetate to give the title compound : MS ES+354.2 (M+H)+, HRMS calcd for C21H28N3O2 354.2182 (M+H)+, found 354.2188, time 0.53 min; Anal. Calcd for C21H27N3O2: C, 71.36; H, 7.70 N, 11.89. Found: C, 71.14; H, 7.60; N, 11.79.

Provenance & Evidence