“…A solution of 19 (1.0 g, 2.7 mmol) in EtOAc (20 mL) was stirred in the presence of 10% Pd-C (50 mg) under H 2 at room temperature for 12 h. The catalyst was removed by filtration and washed with EtOAc. The filtrate was concentrated in Vacuo to give 1 (0.7 g, 95%) as a light yellow power: mp 106-108°C ; 1 H NMR (300 MHz, CDCl3) δ 7.06 (1H, d, J ) 4.8 Hz, Ar-H9), 6.61 (2H, br s, Ar-H6, H7), 6.25 (1H, s, Ar-H1), 6.0 (2H, s, OCH 2O), 3.84 (3H, s, OCH 3), 3.05 (4H, br s, CH2CH2); 13 C NMR (75 MHz, CDCl 3) δ 151.8 (C, C-8), 151.0 (C, C-5a), 139.7 (C, C-2), 139.2 (C, C-4), 136.1 (C, C-4a), 134.6 (C, C-3), 133.0 (C, C-9), 126.7 (C, C-11a), 121.9 (C, C-7), 116.5 (C, C-9a), 113.7 (C, C-6), 107.7 (C, C-1), 102.1 (C, OCH 2O), 56.9 (C, OCH3), 30.6 (C, C-11), 29.7 (C, C-10); EIMS m/z [M] + 286 (100), 265 (10), 228 (16), 213 (13), 185 (11), 128 (10), 77 (11). Anal.…”