¹³C NMR (176 MHz, CDCl₃) δ 171.68 (s, 1C), 171.16 (s, 1C), 155.51 (s, 1C), 154.78 (s, 1C), 148.60 (s, 1C), 148.31 (s, 1C), 138.90 (s, 1C), 138.72 (s, 1C), 136.35 (s, 1C), 134.64 (s, 1C), 134.21 (s, 1C), 128.08 (s, 1C), 127.44 (s, 1C), 121.91 (s, 1C), 121.82 (s, 1C), 121.61 (s, 1C), 116.76 (s, 1C), 116.56 (s, 1C), 80.76 (s, 1C), 80.44 (s, 1C), 62.60 (s, 1C), 61.68 (s, 1C), 47.36 (s, 1C), 47.13 (s, 1C), 31.46 (s, 1C), 29.64 (s, 1C), 28.63 (s, 1C), 28.35 (s, 1C), 24.64 (s, 1C), 24.03 (s, 1C).