3-Pyridinecarbonyl chloride, hydrochloride (1:1) → N3-[4-(4-amino-2-phenyl-1H-imidazo[4,5-c]quinolin-1-yl)butyl]nicotinamide

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According to the general method of Example 61, 1-(4-aminobutyl)-2-phenyl-1H-imidazo[4,5-c]quinolin-4-amine and nicotinoyl chloride hydrochloride were combined to provide N3-[4-(4-amino-2-phenyl-1H-imidazo[4,5-c]quinolin-1-yl)butyl]nicotinamide as a white crystalline solid, m.p. 84.5-86.1° C. 1H NMR (300 MHz, DMSO-d6) δ 8.91 (s, 1H), 8.69 (m, 1H), 8.56 (m, 1H), 8.07 (m, 2H), 7.75-7.41 (m, 8H), 7.21 (m, 1H), 6.72 (broad s, 2H), 4.60 (m, 2H), 3.15 (t, J=6.0 Hz, 2H), 1.86 (m, 2H), 1.40 (m, 2H); MS (CI) m/e 437 (M+H).

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