X-ray crystallographic analysis of IMP-1 metallo-beta-lactamase complexed with a 3-aminophthalic acid derivative, structure-based drug design, and synthesis of 3,6-disubstituted phthalic acid derivative inhibitorsHiraiwa, Y., Saito, J., Watanabe, T., Yamada, M., Morinaka, A., Fukushima, T., Kudo, T.
(2014) Bioorg Med Chem Lett 24: 4891-4894
- PubMed: 25246278
- DOI: https://doi.org/10.1016/j.bmcl.2014.08.039
- Primary Citation of Related Structures:
- PubMed Abstract:
3-(4-Hydroxypiperidine-1-yl) phthalic acid 1 shows potent inhibitory activity against metallo-β-lactamase, which is known to inactivate β-lactam antibiotics such as carbapenems. Here, the structure of co-crystals of the metallo-β-lactamase IMP-1 and 1 was first analyzed by X-ray crystallography, and then used for structure-based drug design. Four novel compounds bearing substituents at the 6-position were synthesized to produce 3,6-disubstituted phthalic acid derivatives, and their IMP-1 inhibitory activity and synergistic effect with the carbapenem biapenem (BIPM) were evaluated. 3,6-Disubstituted phthalic acid derivatives showed potent IMP-1 inhibitory activity. In particular, compound 13 showed 10-fold higher IMP-1 inhibitory activity as compared with the parent derivative 1.
Pharmaceutical Research Center, Meiji Seika Pharma, Co., Ltd, 760 Morooka-cho, Kohoku-ku, Yokohama 222-8567, Japan.