Figure 2

Structures of the theaflavins.
R = R’ = H, theaflavin (TF); R = galloyl, R’ = H, theaflavin-3-gallate (TF3G); R = H, R’ = galloyl, theaflavin-3′-gallate (TF3′G); R = R’ = galloyl, theaflavin-3,3′-digallate (TF3,3′G).
Structures of the theaflavins.
R = R’ = H, theaflavin (TF); R = galloyl, R’ = H, theaflavin-3-gallate (TF3G); R = H, R’ = galloyl, theaflavin-3′-gallate (TF3′G); R = R’ = galloyl, theaflavin-3,3′-digallate (TF3,3′G).