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13C NMR (101 MHz, CDCl3) 199.51,171.55,123.73,56.02,55.88,53.82,45.85,42.39,39.63,38.59,36.10,35.70,35.64,33.97,33.90,32.94,32.05,29.18,28.17,26.12,24.17,23.08,21.03,19.79,19.02, 18.69,17.38,11.96,11.94
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