... 50,2 (C- 9), 45,9 (C-2 4), 42,3 (C- 4), 42,3 (C-1 3), 42,3 (C- 4), 39,8 (C-1 2), 37,3 (C 1), 36,5 (C-1 0), 36,2 (C- 2 0), 34,0 (C- 8), 32,0 (C- 7), 31,7 (C- 2), 29,2 (C-2 5), 28,3 (C-1 6), 26,1 (C-2 3), 24,3 (C-1 5), ... EI-MS m/z (% ): 396 [M+-C6H12O6] (9 ), 273 (2 ), 255 (9 ), 185 (5 ), 16 1(1 5), 145 (2 5), 133 (2 1), 105 (4 2), 91 (4 6), 81 (5 1), 69 (1 0 0); H-NMR (5 00MHz, DMSO-d 6) (ppm): 5,38 (1 H, m, H- 6), 5,03 (1 H, d, ... (C-1 7), 50,7 (C- 9), 49,7 (C-2 4), 45,2 (C-1 3), 38,4 (C- 4), 36,9 (C-1 2), 36,3 (C- 1), 35,6 (C-1 0), 33,4 (C-2 0), 31,5 (C-2 2), 31,5 (C- 8), 29,4 (C-1 6), 28,8 (C-2 3), 27,9 (C- 2), 25,5 (C-2 5), 24,0 (C-1 5), ...