Potassium Iodide → HCID 69294583, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of 2-[4-(5,6,7,8-tetrahydro-quinolin-8-ylamino)-butyl]-isoindole-1,3-dione (146 mg, 0.418 mmol), diisopropylethylamine (0.15 mL, 0.861 mmol) and potassium iodide (14 mg, 0.084 mmol) in acetonitrile (2.5 mL) was added 2-chloromethyl-7-fluoro-1H-benzimidazole (prepared according to the procedures described in Bridger et al. U.S. Provisional Application No. 60/232,891 filed Sep. 15, 2000 and from Application No. 60/234,510 filed Sep. 22, 2000) (80 mg, 0.433 mmol) and the mixture heated at 60° C. for 18 hours. The mixture was then concentrated and the residue diluted with CH2Cl2 (30 mL). The solution was washed with brine (3×15 mL). The combined aqueous phase was extracted with CH2Cl2 (1×15 mL). The combined organic phase was dried (Na2SO4), filtered and concentrated under reduced pressure to give a crude brown foam. The foam was purified by flash chromatography (1.75 cm ID, 12 g silica, 50:1:1 CH2Cl2: MeOH: NH4OH) to give pure 2-{4-[(4-fluoro-1H-benzimidazol-2-ylmethyl)-(5,6,7,8-tetrahydro-quinolin-8-yl)-amino]-butyl}-isoindole-1,3-dione (86 mg, 41%). 1H NMR (CDCl3) δ 1.33-1.76 (m, 5H), 1.85-2.10 (m, 3H), 2.14-2.25 (m, 1H), 2.54-2919 (m, 4H), 3.45-3.55 (m, 2H), 3.98-4.24 (m, 3H), 7.29-7.45 (m, 2H), 7.63-7.69 (m, 2H), 7.72-7.77 (m, 2H), 8.56-8.63 (m, 1H).

Provenance & Evidence