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Compound 34 was prepared from 4-chlorophenol in the same manner of compound 27, and was obtained as white solids (56%). 1H NMR (300 MHz, Methanol-d4): δ 7.75 (d, J=3.0 Hz, 1H), 7.52-7.46 (m, 4H), 7.38 (m, 1H), 7.08 (dd, J=1.8, 8.7 Hz, 1H), 6.88 (d, J=8.7 Hz, 1H). 13C NMR (75 MHz, DMSO-d6): δ 153.70, 152.32, 132.28, 129.63, 128.93, 128.19, 127.12, 126.41, 126.23, 124.62, 123.70, 118.20. HRMS: calcd for C14H10ClN3O3 (MH+) 304.0483. found 304.0487.