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13C NMR (151 MHz, D2O) ¦Ä 188.68 (s), 158.56 (s), 155.44 (s), 151.35 (s), 143.49 (s), 122.04 (s), 91.21 (s), 88.72 (s), 76.54 (s), 73.52 (s), 64.39 (s), 34.65 ¨C 33.62 (m), 14.78 (s), 0.17 (s), -0.00 (s)
1H NMR (600 MHz, D2O) ¦Ä 8.32 (s, 1H), 8.21 (s, 1H), 6.06 (d, J = 6.1 Hz, 1H), 4.44 (dd, J = 4.9, 3.5 Hz, 1H), 4.30 (d, J = 3.0 Hz, 1H), 3.93 (dd, J = 12.9, 2.6 Hz, 1H), 3.85 (dd, J = 12.9, 3.4 Hz, 1H), 3.36 (s, 1H).

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