4-Fluoro-3-nitrophenyl isocyanate → 1-[3-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenyl]-3-(4-fluoro-3-nitro-phenyl)urea

Beteiligte Stoffe

Reaktionsschritte

3-(4-Bromo-2-methyl-2H-pyrazol-3-yl)-4-methoxy-phenylamine (0.037 g, 0.13 mmol) was treated with 4-fluoro-3-nitrophenyl isocyanate (0.025 g, 0.14 mmol, 1.05 equiv.) in CH2Cl2 (1 mL), in a similar manner as described in Example 1.2 to afford Compound 16 (0.042 g, 0.09 mmol, 69%) as a yellow solid. LCMS m/z (%)=464 (M+H79Br, 100), 466 (M+H81Br, 96). 1H NMR (400 MHz, acetone-d6) δ: 8.55 (s, 1H), 8.44-8.50 (m, 1H), 8.29 (s, 1H), 7.77-7.83 (s, 1H), 7.70 (dd, J=2.7, 9.0 Hz, 1H), 7.49 (s, 1H), 7.37-7.46 (m, 2H), 7.16 (d, J=8.9 Hz, 1H), 3.83 (s, 3H), 3.69 (s, 3H).

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