Diisopropylethylamine → HCID 70874145, compound

Participants

Reaction Steps

To a solution of 5-chloro-2-ethyl-3-[methyl(oxan-4-yl)amino]benzoic acid (100 mg, 0.34 mmol) in DMF (2 ml) at room temperature under nitrogen was added HBTU (153 mg, 0.4 mmol) followed by N-ethyl-N-(propan-2-yl)propan-2-amine (88 μl, 0.5 mmol) and 3-(aminomethyl)-4,6-dimethyl-1,2-dihydropyridin-2-one (89%, 63 mg, 0.37 mmol). After stirring for 3 hours 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 (5 g silica, Isolute cartridge, gradient of eluents; 100% DCM to 96:4 DCM:MeOH) to give 94 mg (65%) of the title compound as an off-white solid. LC-MS 95%, m/z=432.1/434.1, 1H NMR (500 MHz, Chloroform-d) δ ppm 11.34 (s, 1H), 7.14-7.08 (m, 2H), 7.03 (d, J=2.0 Hz, 1H), 5.95 (s, 1H), 4.52 (d, J=5.8 Hz, 2H), 3.96 (d, J=11.2 Hz, 2H), 3.33 (td, J=11.4, 2.3 Hz, 2H), 2.96-2.85 (m, 1H), 2.79 (q, J=7.4 Hz, 2H), 2.58 (s, 3H), 2.39 (s, 3H), 2.23 (s, 3H), 1.73-1.62 (m, 4H), 1.05 (t, J=7.4 Hz, 3H).

Provenance & Evidence