Calyxin B exhibits potent activity against human HT-1080 fibrosarcoma cells with an ED50 value of 0.69 microM. A methylated product of calyxin A and an epimeric mixture of Calyxin B, showed greatly reduced activity suggesting that phenolic hydroxyl groups
Izalpinin exhibits potent antioxidant activities in the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Izalpinin exhibits inhibitory role of muscarinic receptor-related detrusor contractile activity, and it may be a promising lead compound to treat overactiv