Design and evaluation of selective butyrylcholinesterase inhibitors based on Cinchona alkaloid scaffold
Fig 2
Structures of cinchonidine (CD) and cinchonine (CN) compounds.
Absolute configurations, opposite in pseudo-enantiomers at positions 8 and 9, are marked with an asterisk and noted; (8S,9R) in cinchonidine and (8R,9S) in cinchonine.