(-)-Corynoxidine is an acetylcholinesterase inhibitor with an IC50 value of 89.0 μM, isolated from the aerial parts of Corydalis speciosa[1].(-)-Corynoxidine exhibits antibacterial activities against Staphylococcus aureus and methicillin-resistant S. aureus strains in different degrees[2]. IC50: 89.0 μM (acetylcholinesterase)[1]
[1]. Kim DK, et al. Acetylcholinesterase inhibitors from the aerial parts of Corydalis speciosa. Arch Pharm Res. 2004 Nov;27(11):1127-31. [2]. Yang DL, et al. A new antibacterial denitroaristolochic acid from the tubers of Stephania succifera. J Asian Nat Prod Res. 2013;15(3):315-8.