... signals at d: 22.8 (C-3 and C-5), 27.5 (C-7), 28.8(C-9 and C-10), 31.5 (C-2 and C-6), 32.9 (C-4), 69.7 (C-1) and73.5 (C-8). The NMR data above were in agreement withthose of 1,8-cineole [30].4 ... and H3 -1 0 ), 1.36(1H, m, H-4), 1.45 (2H, m, Ha -3 and Ha -5 ), 1.47 (2H, m,Ha -2 and Ha -6 ), 1.61 (2H, m, Hb -2 and Hb -6 ) and 2.00 (2H,m, Hb -3 and Hb -5 ). The13C NMR spectrum ... 2010Abbreviations: CCC, counter-current chromatography;HPCPC, high- performance centrifugal partition chromato-graphy; HSCCC, high- speed CCC; Prep-GC, preparative GCCorrespondence: Dr. Qing-Wen Zhang, Institute...