(3-Cyano-5-fluorophenyl)boronic acid → 3-(5,5-Dimethyl-2-oxo-1,2,3,5-tetrahydro-4,1-benzoxazepin-7-yl)-5-fluorobenzonitrile

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Reaction Steps

Prepared from 7-bromo-5,5-dimethyl-1,5-dihydro-4,1-benzoxazepin-2(3H)-one and 3-cyano-5-fluorophenyl boronic acid generally according to the coupling procedure described in example 1. A white solid: mp 238-239° C.; 1H NMR (DMSO-d6): δ 10.1 (s, 1H), 8.14 (t, J=1.5 Hz, 1H), 7.98 (m, 1H), 7.80 (m, 1H), 7.69 (d, J=1.9 Hz, 1H), 7.64 (dd, J=8.3, 2.0 Hz, 1H), 7.19 (d, J=8.3 Hz, 1H), 4.27 (s, 2H), 1.63 (s, 6H). MS m/z 309 ([M−H]−); Anal. calcd for C18H15FN2O2: C, 69.67; H, 4.87; N, 9.03. Found: C, 69.51; H, 4.63; N, 9.07

Provenance & Evidence