N2-(2-(dimethylamino)ethyl)pyridine-2,5-diamine → 5-((3,5-dichloropyridin-4-yl)thio)-N-(6-((2-(dimethylamino)ethyl)amino)pyridin-3-yl)-4-nitrothiophene-2-carboxamide

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Prepared according to the procedure described for example 50 from 5-[(3,5-dichloro-4-pyridyl)sulfanyl]-4-nitro-thiophene-2-carboxylic acid (200 mg, 0.57 mmol) and N2-(2-(dimethylamino)ethyl)pyridine-2,5-diamine (113 mg, 0.63 mmol). The title compound was obtained as a yellow solid (9.0 mg, 3% yield). 1H NMR (400 MHz, d6-DMSO) δ: 10.37 (1H, br), 8.99 (2H, m), 8.61 (1H, m), 8.20 (1H, m), 7.60 (1H, m), 6.53 (2H, m), 2.65 (2H, m), 2.50 (6H, m), 2.37 (2H, m). MS m/z: 513.17, 515.17 [M+H]+.

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