1 ,3-Dipolarcycloaddition 2 Article 2 Azomethine ylides 2 Bicyclic systems 2 Bridged Bicyclo Compounds 2 Carbonyl groups Cycloaddition Reaction 2 Enantiomers 2 Enzyme Inhibitors 2 Glycoside Hydrolases 2 Hydrolysis 2 Ketones 2 Models, Molecular 2 Molecular Conformation 2 Natural amino acids 2 No inhibitory activities 2 Oxidation-Reduction 2 Penicillium 2 Polyhydroxylated 2 Pyrrolidines 2 Stereoisomerism 2 Trifluoroacetates 2 antagonists and inhibitors 2 azomethine ylide 2 bridged bicyclo compounds 2 carbonyl derivative 2 chemical structure 2 conformation 2 cycloaddition 2 drug effect 2