“…6H) 13. C NMR (126 MHz, CDCl 3 ): δ 165.49, 155.98, 150.33, 150.30, 150.20, 149.77, 143.63, 142.71, 139.40, 136.87, 134.64, 134.43, 132.91, 132.26, 132.15, 132.10, 131.61, 131.06, 130.87, 129.40, 127.57, 126.59, 123.76, 121.97, 121.45, 121.32, 120.42, 119.89, 119.23, 111.35, 97.10, 94.64, 88.39, 88.00, 52.62, 42.…”