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Diastereoselective Synthesis, Glycosidase Inhibition, and Docking Study of C-7-Fluorinated Casuarine and Australine Derivatives. | LitMetric

Diastereoselective Synthesis, Glycosidase Inhibition, and Docking Study of C-7-Fluorinated Casuarine and Australine Derivatives.

J Org Chem

Beijing National Laboratory for Molecular Science (BNLMS), CAS Key Laboratory of Molecular Recognition and Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.

Published: June 2022

AI Article Synopsis

Article Abstract

C-7-fluorinated derivatives of two important polyhydroxylated pyrrolizidines, casuarine and australine, were synthesized with organocatalytic stereoselective α-fluorination of aldehydes as the key step. The strategy is extensively applicable to some synthetically challenging fluorinated iminosugars and carbohydrates. The docking studies indicated that the potent inhibitions of trehalase and amyloglucosidase by the fluorinated polyhydroxylated pyrrolizidines are due to the interaction modes dominated by fluorine atoms in these iminosugars with the amino acids' residues of the corresponding enzymes. Steady interactions were established between the C-7 fluoride and a hydrophobic pocket in amyloglucosidase by untypical anion-π interactions. These unexpected docking modes and related structure-activity relationship studies emphasize the value of fluorination in the design of polyhydroxylated pyrrolizidine glycosidase inhibitors.

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Source
http://dx.doi.org/10.1021/acs.joc.2c00485DOI Listing

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