4-Bromo-2-fluorobenzonitrile → 4-(4,4-diethyl-1-methyl-2-oxo-2,4-dihydro-1H-benzo[d][1,3]oxazin-6-ylamino)-2-fluorobenzonitrile

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Reaction Steps

Prepared from 6-amino-4,4-diethyl-1-methyl-1,4-dihydro-2H-3,1-benzoxazin-2-one and 4-bromo-2-fluorobenzonitrile according to the coupling procedure described in example 2. 1H NMR (DMSO-d6): δ 9.15 (s, 1H), 7.62 (t, J=7.9 Hz, 1H), 7.24 (dd, J=8.6, 2.3 Hz, 1H), 7.11 (d, J=8.7 Hz, 1H), 7.03 (d, J=2.4 Hz, 1H), 6.76 (m, 2H), 3.29 (s, 3H), 1.99 (m, 4H), 0.81 (t, J=7.3 Hz, 6H); MS (ESI) m/z 354 ([M+H]+); MS (ESI) m/z 352 ([M−H]−); Anal. calcd for C20H20FN3O2: C, 67.97H, 5.70; N, 11.89. Found: C, 67.09; H, 5.64; N, 11.53.

Provenance & Evidence