Benzenamine, 3-ethynyl- → 9-(3-Ethynylphenylamino)thiazolo[5,4-f]quinazoline-2-carbonitrile

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Reaction Steps

Prepared from VII and 3-ethynylaniline. Flash chromatography eluent (DCM-EtOAc, 7:3). Yield: 84%; yellow solid; mp 182° C.; IR (KBr) νmax/cm−1 3295, 3062, 2846, 2225, 1642, 1612, 1581, 1566, 1458, 1404, 1376, 1348, 1306, 1263, 1229, 1165, 1148, 1126, 971, 910, 888, 835; 1H NMR (300 MHz, DMSO-d6) δ 8.53 (d, 1H, J=8.7 Hz), 8.20 (s, 1H), 7.78 (d, 1H, J=8.7 Hz), 7.40-7.35 (m, 2H), 7.29 (m, 1H), 7.20 (m, 1H), 4.17 (s, 1H); HRMS calcd for C18H10N5S (M+H+): 328.0657, found 328.0659.

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