3-Aminopyridine → 3-Bromo-5-(pyridin-3-ylamino)-benzoic acid methyl ester

Beteiligte Stoffe

Reaktionsschritte

3-Bromo-5-(pyridin-3-ylamino)-benzoic acid methyl ester was prepared from 3,5-dibromo-benzoic acid methyl ester and pyridin-3-ylamine in low yield as described for Example 36, except that the reaction was run at 130° C. This material was converted to 3-(1H-indol-4-yl)-5-(pyridin-3-ylamino)-benzoic acid methyl ester by the method of Example 35. 1H NMR (400 MHz, CDCl3): δ 8.43 (d, J=14.4 Hz, 2H), 8.20 (s, 1H), 7.99 (s, 1H), 7.73 (s, 1H), 7.56 (s, 1H), 7.49 (d, J=8.2 Hz, 1H), 7.41 (d, J=8.0 Hz, 1H), 7.29-7.24 (m, 2H), 7.22-7.16 (m, 2H), 6.69 (s, 1H), 5.93 (s, 1H), 3.92 (s, 3H).

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