Methyl 6-chloropyridine-3-carboxylate → Methyl 6-{4-[({5-[(2-fluorophenyl)amino]-1,3,4-oxadiazol-2-yl}carbonyl)amino]-piperidin-1-yl}nicotinate

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Reaction Steps

A solution of 5-[(2-fluorophenyl)amino]-N-piperidin-4-yl-1,3,4-oxadiazole-2-carboxamide (Intermediate 101) (100 mg, 0.33 mmol) and methyl 6-chloronicotinate (56 mg, 0.33 mmol) in dry DMF (3 mL) was heated in the microwave at 120° C. for 1 h. The reaction mixture was filtered and the filtrate was purified by preparative HPLC to give the title compound (17 mg, 12%) as a solid; 1H NMR δ 1.66-1.53 (m, 2H), 1.92-1.82 (m, 2H), 3.12-2.99 (m, 2H), 3.80 (s, 3H), 4.16-4.04 (m, 1H), 4.54-4.42 (m, 2H), 6.92 (d, 1H), 7.18-7.10 (m, 1H), 7.33-7.21 (m, 2H), 7.97-7.92 (m, 1H), 8.04-7.98 (m, 1H), 8.65 (d, 1H), 9.03 (d, 1H), 10.62 (s, 1H); MS m/e MH+ 441.

Provenance & Evidence