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20379990

Source:http://linkedlifedata.com/resource/pubmed/id/20379990

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pubmed-article:20379990pubmed:abstractTextA small set of aggrecanase inhibitors based on the pyrrolo[3,4-c]quinolin-1-one or oxoisoindoline frameworks bearing a 4-(benzyloxy)phenyl substituent and different zinc binding groups were rationally designed and evaluated in silico by docking studies using the crystal structure of the ADAMTS-5 catalytic domain (PDB code: 3B8Z). The designed compounds were synthesized via straightforward routes and tested for their potential inhibitory activity against ADAMTS-5 and ADAMTS-4. Among the compounds containing the pyrrolo[3,4-c]quinolinone tricyclic system, hydroxamate derivative 2 b inhibited both ADAMTS-5 and ADAMTS-4, with IC(50) values in the submicromolar range and an inhibitory profile very similar to that of reference carboxylate derivative 11. Conversely, the corresponding carboxylate derivative 2 a was significantly less active and unable to discriminate between ADAMTS-5 and -4. The structure-activity relationship analysis of pyrroloquinolinone derivatives 2 a-i suggests that the carboxylate or hydroxamate groups of compounds 2 a,b play a key role in the interaction of these compounds with ADAMTS-5 and -4. On the other hand, the oxoisoindoline derivatives 3 a,b lack significant ADAMTS-4 inhibitory activity and inhibit ADAMTS-5 showing IC(25) values in the micromolar range.lld:pubmed
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pubmed-article:20379990pubmed:articleTitleDesign, synthesis, and preliminary biological evaluation of pyrrolo[3,4-c]quinolin-1-one and oxoisoindoline derivatives as aggrecanase inhibitors.lld:pubmed
pubmed-article:20379990pubmed:affiliationDipartimento Farmaco Chimico Tecnologico and the European Research Centre for Drug Discovery and Development, Università di Siena, Italy. cappelli@unisi.it <cappelli@unisi.it>lld:pubmed
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