Download MendeleyA potent aldose reductase inhibitor, (2S,4S)-6-fluoro-2', 5'-dioxospiro[chroman-4,4'-imidazolidine]-2-carboxamide (Fidarestat): its absolute configuration and interactions with the aldose reductase by X-ray crystallography.
Oka, M., Matsumoto, Y., Sugiyama, S., Tsuruta, N., Matsushima, M.(2000) J Med Chem 43: 2479-2483
- PubMed: 10882376
- DOI: https://doi.org/10.1021/jm990502r
- Primary Citation of Related Structures:
1EF3 - PubMed Abstract:
The absolute configuration of the aldose reductase (AR) inhibitor, (+)-(2S,4S)-6-fluoro-2',5'-dioxospiro¿chroman-4, 4'-imidazolidine-2-carboxamide (fidarestat), was established indirectly by single-crystal X-ray analysis of (+)-(2S, 4S)-8-bromo-6-fluoro-2',5'-dioxospiro¿chroman-4, 4'-imidazolidine-2-carboxylic acid (1). The crystal structure of human AR complexed with fidarestat was determined, and the specific inhibition activity was discussed on the basis of the three-dimensional interactions between them. The structure clarified that fidarestat was located in the active site by hydrophilic and hydrophobic interactions and that the carbamoyl group of fidarestat was a very effective substituent for affinity to AR and for selectivity between AR and aldehyde reductase (AHR). Explanations for the differences between the observed activities of fidarestat and its stereoisomer 2 were suggested by computer modeling.
Organizational Affiliation:
Rational Drug Design Laboratories, 4-1-1, Misato, Matsukawa-machi, Fukushima 960-1242, Japan. m_oka@mb6.skk-net.com
