Nine of 16 Stereoisomeric Polyhydroxylated Proline Amides Are Potent β-<i>N</i>-Acetylhexosaminidase Inhibitors
作者:Benjamin J. Ayers、Andreas F. G. Glawar、R. Fernando Martínez、Nigel Ngo、Zilei Liu、George W. J. Fleet、Terry D. Butters、Robert J. Nash、Chu-Yi Yu、Mark R. Wormald、Shinpei Nakagawa、Isao Adachi、Atsushi Kato、Sarah F. Jenkinson
DOI:10.1021/jo500157p
日期:2014.4.18
All 16 stereoisomeric N-methyl 5-(hydroxymethyl)-3,4-dihydroxyproline amides have been synthesized from lactones accessible from the enantiomers of glucuronolactone. Nine stereoisomers, including all eight with a (3R)-hydroxyl configuration, are low to submicromolar inhibitors of beta-N-acetylhexosaminidases. A structural correlation between the proline amides is found with the ADMDP-acetamide analogues bearing an acetamidomethylpyrrolidine motif. The proline amides are generally more potent than their ADMDP-acetamide equivalents. beta-N-Acetylhexosaminidase inhibition by an azetidine ADMDP-acetamide analogue is compared to an azetidine carboxylic acid amide. None of the amides are good alpha-N-acetylgalactosaminidase inhibitors.