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1H NMR (600 MHz, D2O) ¦Ä 7.73 (d, J = 8.0 Hz, 1H), 7.53 (d, J = 8.2 Hz, 1H), 7.31 ¨C 7.26 (m, 2H), 7.22 ¨C 7.17 (m, 1H), 3.96 (d, J = 19.1 Hz, 1H), 3.46 (dd, J = 21.9, 18.3 Hz, 1H), 3.25 (dt, J = 40.4, 20.1 Hz, 1H).
13C NMR (151 MHz, D2O) ¦Ä 188.60 (s), 178.52 (s), 139.06 (s), 129.49 (s), 127.67 (s), 124.83 (s), 122.17 (s), 121.25 (s), 114.67 (s), 110.72 (s), 58.03 (s), 29.75 (s), -0.10 (s), -0.27 (s).


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