Piperidine → HCID 16065090, compound

Participants

Reaction Steps

To a stirred solution of 82 (60 mg, 0.20 mmol) in DMF (1 mL) was added N,N-diisopropylethylamine (50 mg, 0.39 mmol), piperidine (40 mg, 0.47 mmol) and (benzotriazol-1-yloxy)tripyrrolidinophosphonium hexafluorophosphate (PyBOP; 180 mg, 0.35 mmol). After stirring for 1 h, the reaction mixture was filtered and purified by preparative LCMS (column LUNA 10 g C18(2) 00G-4253-V0 250×50 mm) using water—acetonitrile (0.1% AcOH) as eluent (in gradient; flow 80 mL/min) to afford 83 as a white solid (42 mg, 0.11 mmol, 57%). 1H NMR (400 MHz, CDCl3) δ 0.89 (d, J=6.6 Hz, 2H), 1.63-1.76 (m, 6H), 1.86 (nonet, J=6.6 Hz, 1H), 2.56 (d, J=7.2 Hz, 2H), 3.69-3.75 (m, 2H), 4.32-4.39 (m, 2H), 7.45 (s, 1H), 7.70 (d, J=2.6 Hz, 1H), 8.11 (d, J=1.6 Hz, 1H), 8.13 (d, J=1.6 Hz, 1H), 9.26 (s, 1H). MS (CI) m/z 369 (MH+).

Provenance & Evidence