1-(Thien-2-ylcarbonyl)piperazine → 1-(4-Fluorobenzyl)-2-oxo-4-[4-(thiophene-2-carbonyl)-piperazin-1-yl]-1,2-dihydro-quinolin-3-carbonitrile

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Piperazine-1-yl-thiophen-2-yl-methanone (234 mg, 1.19 mmol) was added to a solution of Compound 8 (170 mg, 0.54 mmol) in toluene (40 mL) and heated overnight at 120° C. The solvent was removed under vacuum. The residue was suspended in water, sonicated, and filtered to yield 247 mg (97%) of white solids. M.P. 258° C. 1H NMR (DMSO-d6): δ 3.69 (m, 4H), 3.94 (m, 4H), 5.47 (s, 2H), 7.16 (m, 3H), 7.28 (m, 3H), 7.43 (d, J=8.5 Hz, 1H), 7.50 (d, J=3.3 Hz, 1H), 7.64 (t, J=7.25, 2H), 7.81 (d, J=4.8 Hz, 1H) 7.95 (d, J=7.5 Hz, 1H). EIMS m/z 473 (M+1), 495 (M+23). Anal. (C26H21FN4O2S) C, H, N.

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