1,1,1-Trimethoxypropane → 4-(6,6-dimethyl-5,6,7,8-tetrahydroquinazolin-4-yl)-7-(2-ethyl-1H-benzimidazol-6-yl)-2,3,4,5-tetrahydro-1,4-benzoxazepine

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Reaction Steps

Prepared according to the method of example 18 omitting step 1 and by using 4-[4-(6,6-dimethyl-5,6,7,8-tetrahydroquinazolin-4-yl)-2,3,4,5-tetrahydro-1,4-benzoxazepin-7-yl]benzene-1,2-diamine and trimethyl orthopropionate in step 2. 1H NMR (400 MHz, d6-DMSO): 8.69 (s, 1H), 7.94 (s, 1H), 7.84-7.78 (m, 3H), 7.60 (m, 1H), 7.35 (s, 1H), 7.23 (s, 1H), 7.04 (d, 1H), 5.09 (s, 2H), 4.48 (m, 2H), 4.19 (m, 2H), 3.18 (dd, 2H), 2.70 (t, 2H), 2.54 (s, 2H), 1.58 (t, 2H), 1.45 (t, 3H), 0.85 (s, 6H); MS (EI) for C28H31N5O: 454 (MH+).

Provenance & Evidence