反应详情

The title compound was prepared from the HATU-mediated coupling of 4-iodo-2-(quinoxaline-5-sulfonylamino)benzoic acid (EXAMPLE 4, Step D) and 4-hydroxypiperidine and purified as described in EXAMPLE 1, Step K. MS (ESI): mass calculated for C20H19IN4O4S, 538.0; m/z found, 539 [M+H]+. HPLC (reverse phase): RT=7.77 min. 1H NMR (400 MHz, CDCl3, rotameric broadening): 9.07 (d, J=1.8 Hz, 1H), 9.02 (d, J=1.8 Hz, 1H), 8.90 (br s, 1H), 8.50 (dd, J=7.0, 1.5 Hz, 1H), 8.37 (dd, J=8.4, 1.4 Hz, 1H), 7.95 (d, J=1.5 Hz, 1H), 7.89 (dd, J=8.4, 7.4 Hz, 1H), 7.39 (dd, J=8.0, 1.6 Hz, 1H), 6.77 (d, J=8.0 Hz, 1H), 3.94-3.90 (m, 1H), 3.80-3.75 (m, 1H), 3.2-2.8 (m, 3H), 2.05-2.01 (m, 2H), 1.7-1.3 (m, 3H).

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