1,1-dimethylethyl 7-(6-amino-5-nitropyridin-3-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate → N-ethyl-6-{4-[2-methyl-7-(methyloxy)quinazolin-4-yl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl}-1H-imidazo[4,5-b]pyridin-2-amine

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Reaction Steps

Prepared according to the method of example 11 by using tert-butyl 7-(6-amino-5-nitropyridin-3-yl)-2,3-dihydro-1,4-benzoxazepine-4(5H)-carboxylate (Example 26) in step 1 and 4-chloro-7-methoxy-2-methylquinazoline in step 4. 1H NMR (400 MHz, DMSO-d6) δ 8.22 (s, 0.5H), 8.07 (s, 0.5H), 7.90 (d, 1H), 7.68-7.42 (m, 3H), 7.17-6.84 (m, 4H), 5.00 (s, 2H), 4.47-4.39 (m, 2H), 4.18-4.10 (m, 2H), 3.88 (s, 3H), 3.40-3.30 (m, 2H), 2.43 (s, 3H), 1.26-1.13 (m, 3H); MS (EI) for C27H27N7O2: 482 (MH+).

Provenance & Evidence