Journal
JOURNAL OF MEDICINAL CHEMISTRY
Volume 51, Issue 4, Pages 725-736Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jm070376o
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Through a de novo design approach, hydroxamates derived from traps-cyclopropyl dicarboxylate were examined as potential TNF-alpha converting enzyme (TACE) inhibitors. Two distinctive series of inhibitors (A and B) were identified and shown to have different structure-activity relationship trends and selectivity profiles against other matrix metalloproteases despite their close structural similarities. X-ray crystallography of the inhibitors binding to the TALE enzyme demonstrates that each series derives its activity from the opposite enantiomer of the cyclopropyl scaffolds, which display almost superimposable hydroxamate groups that coordinate to the zinc at the catalytic site. Mode A inhibitors occupy the S1'-S3' binding pockets, whereas mode B resides in the nonprime binding sites.
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