丁烯基苯酞;丁烯基酞內酯抑制劑1. (Z)-3-butylidenephthalide has antihyperglycemic effect is due to inhibition of α-glucosidase at the intestinal level, inhibited the activity of yeast-α-glucosidase (IC(5) 2.35 mM) in a noncompetitive fashion with a K(i) of 4.86 mM.