Dimethylformamide → HCID 90386902, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of (S)-tert-butyl 3-((3-chloro-7-fluoroisoquinolin-1-yl)oxy)pyrrolidine-1-carboxylate (1 g, 2.73 mmol) in DMF (10 mL) was added Zn(CN)2 (0.64 g, 5.46 mmol) and Pd(PPh3)4 (0.316 g, 0.273 mmol) under N2. The mixture was heated at 160° C. for 30 minutes in a microwave reactor and was subsequently partition between EtOAc (50 mL) and water (50 mL). The aqueous phase was back-extracted with EtOAc (3×50 mL) and the organic layers were combined and washed with saturated aqueous NaCl (3×50 mL) and concentrated in vacuo. The crude product was purified by column chromatography eluting with petroleum ether and ethyl acetate (PE/EtOAc=20:1-5:1 gradient) to give the title compound (0.65 g, 65%). 1H NMR (400 MHz, DMSO-d6) δ ppm 8.28 (s, 1H), 8.19-8.16 (dd, J1=5.2 Hz, J2=3.6 Hz, 1H), 7.97-7.95 (m, 2H), 5.73-5.69 (d, J=16 Hz, 1H), 3.71-3.67 (m, 1H), 3.58-3.50 (m, 3H), 2.25-2.24 (d, J=4 Hz, 2H), 1.42-1.39 (d, J=12 Hz, 9H).

Provenance & Evidence