反应详情

Reaction of acid (244) (0.23 g, 0.48 mmol) prepared as described in example 204 according to the procedure described in example 207, except that concentrated ammonia (˜30%, 20 mL) was added as the amine, gave amide (250) (0.17 g, 73%) as a yellow powder, mp 261–264° C. 1H NMR δ [(CD3)2SO] 11.19 (br s, 1H), 8.50 (d, J=2.6 Hz, 1H), 7.87 (s, 1H), 7.73 (d, J=9.0 Hz, 1H), 7.63 (m, 2H), 7.52 (dd, J=8.8, 7.3 Hz, 1H), 7.38 (br s, 1H), 7.33 (dd, J=9.0, 2.6 Hz, 1H), 6.87 (br s, 1H), 4.69 (t, J=6.7 Hz, 214), 3.91 (s, 3H), 2.57 (t, J=6.7 Hz, 2H). Found: C, 59.55; H, 3.79; N, 8.73. C14H17Cl2N3O4 requires: C, 59.75; H, 3.55; N, 8.71.

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