Table 1

1H NMR and 13C NMR Spectral Data1-a for 4′-O-MeEGC and EGC

Position1H NMR (J; Hz)13C NMR
4′-O-MeEGCEGC4′-O-MeEGCEGC
24.83 (s)4.82079.3379.46
34.20 (m)4.19066.9067.02
2.72 (dd J = 16.5, 3.3)2.72729.0128.82
2.84 (dd J = 16.8, 4.4)2.84929.0128.82
4a99.6299.92
5,7156.88157.57
66.01 (d J = 2.2)6.01696.1896.18
85.91 (d J = 2.2)5.91395.6495.73
8a156.88157.14
1′136.26131.56
2′,6′6.58 (d J = 0.5)6.574107.02106.97
3′,5′150.78146.17
4′135.25132.97
OCH3 3.77 (s)60.61
  • 1-a  Chemical shifts are expressed in ppm down field from the signal for tetramethylsilane in acetone-d 6, and coupling constant in Hz are in parentheses of the second column.