3,4-Difluorophenyl isocyanate → 1-[3-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(3,4-difluoro-phenyl)-urea

関与物質

反応手順

3-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenylamine (0.035 g, 0.12 mmol) was treated with 3,4-difluorophenyl isocyanate (0.021 g, 16.0 μL, 0.13 mmol, 1.05 equiv.) in CH2Cl2 (1 mL), in a similar manner as described in Example 1.2 to afford Compound 10 (0.021 g, 0.047 mmol, 38%) as a white solid. LCMS m/z (%)=437 (M+H79Br, 100), 439 (M+H81Br, 99). 1H NMR (400 MHz, acetone-d6) δ: 8.29 (s, 1H), 8.16 (s, 1H), 7.74 (dddd, J=2.5, 7.4, 13.4 Hz, 1H), 7.68 (dd, J=2.7, 9.0 Hz, 1H), 7.49 (s, 1H), 7.42 (d, J=2.7 Hz, 1H), 7.11-7.26 (m, 2H), 7.13 (d, J=9.0 Hz, 1H), 3.82 (s, 3H), 3.69 (s, 3H).

情報源と証拠