1,2-Ethanediamine, N1-phenyl- → 3-amino-N-methyl-6-[3-({[2-(phenylamino)ethyl]amino}carbonyl)phenyl]pyrazine-2-carboxamide

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3-amino-N-methyl-6-[3-({[2-(phenylamino)ethyl]amino}carbonyl)phenyl]pyrazine-2-carboxamide was synthesized according to the procedure described in above from N-phenylethane-1,2-diamine and 3-{5-amino-6-[(methylamino)carbonyl]pyrazine-2-yl}benzoic acid. Yield 45%: 1H NMR (400 MHz, CDCl3): 8.90 (s, 1H), 8.82 (br d, 1H), 8.70 (br t, 1H), 8.45 (br s, 1H), 8.32 (br d, 1H), 7.82 (br d, 1H), 7.52 (t, 1H), 7.02 (t, 2H), 6.62 (d, 2H), 6.50 (t, 1H), 5.72 (br t, 1H), 3.52 (d, 2H), 3.20 (d, 2H), 2.92 (d, 3H); MS (EI) for C21H22N6O2: 391 (MH+)

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