Diisopropylethylamine → HCID 89907007, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 2-chloro-5-((4-(trifluoromethoxy)phenyl)carbamoyl)nicotinic acid ethyl ester (Stage 72.5, 3.00 g, 7.7 mmol), (R)-3-pyrrolidinol (0.807 g, 9.26 mmol) and DIPEA (2.19 g, 17.0 mmol) in iPrOH (50 mL) was stirred at 22° C. for 60 min. The solvent was evaporated off under reduced pressure and the residue was dissolved in EtOAc, washed with sat. aq. NaHCO3 and brine, dried over anhydrous Na2SO4 and the solvent was evaporated off under reduced pressure to give the title compound as a foam. HPLC (Condition 4) tR=5.63 min, UPLC-MS (Condition 8) tR=1.06 min, m/z=440.1 [M+H]+; 1H-NMR (400 MHz, DMSO-d6) δ ppm 1.32 (t, J=7.04 Hz, 3H), 1.79-2.01 (m, 2H), 3.09 (d, J=11.73 Hz, 1H), 3.41 (d, J=8.21 Hz, 1H), 3.54 (dd, J=11.73, 4.30 Hz, 1H), 3.65 (dd, J=10.17, 3.52 Hz, 1H), 4.25-4.39 (m, 3H), 4.96 (d, J=3.13 Hz, 1H), 7.34 (d, J=8.21 Hz, 2H), 7.78-7.90 (m, 2H), 8.36 (d, J=2.35 Hz, 1H), 8.81 (d, J=2.35 Hz, 1H), 10.28 (s, 1H).

Provenance & Evidence