反应详情

The product from Example 260B was reacted with N,N-dimethyl-1,3-phenylenediamine according to the procedure from Example 137C substituting N,N-dimethyl-1,3-phenylenediamine for 5-amino-o-cresol and substituting the product from Example 260B for the product from Example 137B to provide the title compound as an off white solid after trituration of the reaction product from methanol (45 mg, 52%). 1H NMR (300 MHz, DMSO-D6) δ ppm: 10.33 (s, 1 H), 9.99 (s, 1 H), 9.11 (dd, J=4.41, 1.84 Hz, 1 H), 8.96 (dd, J=8.46, 1.84 Hz, 1 H), 8.63 (s, 1 H), 8.01 (d, J=1.84 Hz, 1 H), 7.82 (dd, J=8.46, 1.84 Hz, 1 H), 7.70 (dd, J=8.09, 4.41 Hz, 1 H), 7.36-7.43 (m, 2 H), 7.10-7.20 (m, 3 H), 6.97-7.04 (m, 3 H), 6.48 (td, J=4.50, 2.39 Hz, 1 H), 3.77 (s, 3 H), 2.88 (s, 6 H); MS (ESI+) m/z 523.5 (M+H)−, (ESI−) m/z 521.2 (M−H)−.