Diisopropylethylamine → HCID 70913255, compound

Participants

Reaction Steps

To a solution of 3-({1-[(tert-butoxy)carbonyl]piperidin-4-yl}(ethyl)amino)-5-chloro-2-methylbenzoic acid (60 mg, 0.15 mmol) in DMF (2 ml) at room temperature under nitrogen was added PyBOP (94 mg, 0.18 mmol) followed by N-ethyl-N-(propan-2-yl)propan-2-amine (40 μl, 0.23 mmol) and 3-(aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-one (89%, 28 mg, 0.17 mmol). After stirring for 1 hour at room temperature EtOAc (30 ml) was added to the reaction mixture and this was then washed with deionized water (5 ml) followed by saturated NaHCO3(aq) (3×5 ml). The organic phase was dried over MgSO4, filtered and concentrated under reduced pressure. The residue was purified by FCC (2 g silica, Isolute cartridge, gradient of eluents; 100% EtOAc to 96:4 EtOAc:MeOH) to give 71 mg (88%) of the title compound as a pale yellow solid. LC-MS 97%, m/z=531.1/533.1, 1H NMR (250 MHz, Chloroform-d) δ ppm 11.17 (1H, br. s.), 7.11-7.18 (1H, m), 7.06 (2H, dd, J=7.46, 2.28 Hz), 5.96 (1H, s), 4.53 (2H, d, J=5.94 Hz), 3.93-4.14 (2H, m), 2.97-3.08 (2H, m), 2.78-2.88 (1H, m), 2.68 (2H, t, J=11.57 Hz), 2.39 (3H, s), 2.26 (3H, s), 2.24 (3H, s), 1.71 (2H, d, J=11.27 Hz), 1.52 (2H, br. s.), 1.45 (9H, s), 0.86 (3H, t, J=6.93 Hz).

Provenance & Evidence