2-Pyridinecarboxamide → N-[2-(1,1-Dioxido-2,3-dihydro-1,4-benzothiazepin-4(5H)-yl)-6-methylquinolin-4-yl]pyridine-2-carboxamide

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A mixture of pyridine-2-carboxylic acid amide (99 mg, 0.8 mmol), 4-(4-chloro-6-methylquinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide (300 mg, 0.8 mmol, prepared in analogy to 4-(4-chloro-6-(trifluoromethoxy)quinolin-2-yl)-2,3,4,5-tetrahydro-1,4-benzothiazepine 1,1-dioxide in Example 17-1), cyclohexane-1,3-diamine (90 mg, 0.08 mmol), copper(I) iodide (1.5 mg, 0.008 mmol) and potassium phosphate (340 mg, 1.6 mmol) in 1,4-dioxane (3 mL) was heated in a 5 mL of microwave process vial for 3 hours at 150° C. The reaction mixture was concentrated in vacuo. The residue was purified by preparative HPLC and SPE to give 26 mg of the desired product (yield was 7.1%). MS obsd. (ESI+) [(M+H)+] 451, 1H NMR (400 MHz, CD3OD) δ ppm 8.90-8.82 (d, J=8 Hz, 1 H), 8.77 (s, 1 H), 8.47-8.40 (d, J=7.6 Hz, 1 H), 8.20-8.13 (t, J=6.4 Hz, 1 H), 8.13-8.08 (d, J=7.6 Hz, 2 H), 7.92-7.85 (m, 2 H), 7.80-7.70 (q, J=8.4 Hz, 3 H), 7.62-7.56 (t, J=7.2 Hz, 1 H), 5.37 (s, 2 H), 4.80-4.50 (m, 2 H), 3.82-3.78 (t, J=2.8 Hz, 2 H), 2.60 (s, 3 H).

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