ACHE and Alzheimer disease: According to Sawasdee et al. [46], a MeOH extract as well as compounds (86–87) isolated from K. parviflora rhizomes inhibited acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) with greater cholinesterase inhibitory toward AChE and BChE for (86), which was an observation of significance in the treatment of Alzheimer’s disease [46].