Reaction Steps
To a solution of benzotriazole (303 mg, 2.54 mmol) and powdered NaOH (101 mg, 2.52 mmol) in DMSO was added 1-bromo-3-chloro propane (437 mg, 2.77 mmol). The reaction mixture was stirred for 16 h at 20° C. The reaction mixture was then diluted with EtOAc (100 mL) and washed with H2O (100 mL) and saturated NaCl (100 mL), dried over MgSO4 and concentrated in vacuo. Column purification (hexanes:EtOAc 4:1) yielded 1-(3-chloropropyl)-1H-1,2,3-benzotriazole (167 mg, 34%). The title compound was prepared according to Example 286, Step C as a yellow oil (21 mg, 42%) from (8aS,12aR)-6,7,8a,9,10,11,12,12a-octahydro-5H-pyrido[4,3-b][1,4]thiazepino[2,3,4-hi]indole (30 mg, 0.12 mmol) and 1-(3-chloropropyl)-1H-1,2,3-benzotriazole (48 mg, 0.24 mmol). 1H NMR (CDCl3) δ1.88-1.98 (m, 3H), 1.99-2.18 (m, 2H), 2.20-2.41 (m, 5H), 2.51-2.60 (m, 1H), 2.64-2.71 (m, 1H), 2.89-3.00 (m, 1H), 3.03-3.13 (m, 2H), 3.21-3.27 (m, 1H), 3.47-3.60 (m, 1H), 3.76-3.88 (m, 1H), 4.73 (t, 2H, J=6.6 Hz), 6.61 (t, 1H, J=7.4 Hz), 6.84 (d, 1H, J=6.6 Hz), 6.94 (dd, 1H, J=1.1, 8.1 Hz), 7.37 (td, 1H, J=1.1, 7.4 Hz), 7.49 (td, 1H, J=1.1, 7.8 Hz), 7.57 (d, 1H, J=8.0 Hz), 8.07 (d, 1H, J=8.4 Hz) ppm.
