Table 1.

Inhibitory activity of phenyl ring derivatives with various O-linked fragments^a

^aInhibitory potency was evaluated by FP assay that was performed in triplicates. ND: not determined.

^bIC₅₀ is indicated as an average value of three replicates ± SEM (standard error of the mean).

^cK_i is calculated from the IC₅₀ values in FP assay.