(Pyrimidin-5-yl)boronic acid → HCID 68327940, compound

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Using general procedure E, quinuclidin-3-yl 2-(4-bromophenyl)propan-2-ylcarbamate (200 mg, 0.540 mmol), pyrimidin-5-ylboronic acid (136 mg, 1.12 mmol) and [PdCl2 (pddf)]CH2Cl2 gave the title compound as a white solid (80 mg, 40%). 1H NMR (500 MHz, CDCl3) δ 9.17 (s, 1H), 8.92 (s, 2H), 7.58-7.51 (m, 4H), 5.34 (s, 1H), 4.61 (m, 1H), 3.20-3.10 (m, 1H), 2.92-2.41 (m, 5H), 2.00-1.76 (m, 2H), 1.72-1.53 (m, 7H), 1.52-1.32 (m, 2H) ppm. 13C NMR (125 MHz, CDCl3) δ 157.4, 154.8, 154.5, 148.2, 134.0, 132.5, 127.0, 126.0, 71.2, 55.6, 55.0, 47.4, 46.3, 29.7, 29.4, 25.4, 24.5, 19.5 ppm. Purity: >96% LCMS (214 nm & 254 nm); retention time 1.34 min; (M+1) 366.

Provenance & Evidence