1,2-Dichloroethane → HCID 68086557, compound

Participants

Reaction Steps

To a solution of 3-bromoisonicotinic acid (0.250 g, 1.238 mmol) in DMF (1.5 mL) was added pyrrolidine (0.097 g, 1.361 mmol), EDC (0.285 g, 1.485 mmol), and HOBt (0.227 g, 1.485 mmol) resulting in a homogenous solution. After stirring at room temperature 3 hours, the reaction mixture was dissolved in a saturated aqueous solution of sodium bicarbonate (20 mL) and extracted with EtOAc (2×20 mL). The combined organics were washed with brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure to provide Intermediate 12A as a colorless oil (0.219 g, 0.850 mmol, 68.7% yield). HPLC Ret timea: 1.463 min. MS (ES): m/z=257.0 [M+H]+. 1H NMR (400 MHz, acetone) δ ppm 1.77-2.03 (m, 4 H) 3.20 (t, J=6.40 Hz, 2 H) 3.55 (t, J=6.65 Hz, 2 H) 7.38 (d, J=4.27 Hz, 1 H) 8.63 (d, J=4.77 Hz, 1 H) 8.78 (s, 1 H).

Provenance & Evidence