Abstract
Dipeptide-based inhibitors with C-substituted (alkyl or aminoalkyl) alpha-amino acids in the P2 position and boro-norleucine (boro-Nle) in the P1 position were synthesized. Relative to boro-proline, boro-Nle as a P1 residue was shown able to significantly dial out DPP4, FAP, DPP8, and DPP9 activity. Dab-boro-Nle (4g) proved to be the most selective and potent DPP7 inhibitor with a DPP7 IC50 value of 480 pM.
MeSH terms
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Boronic Acids*
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Dipeptides / chemical synthesis
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Dipeptides / pharmacology
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Dipeptidyl-Peptidases and Tripeptidyl-Peptidases / antagonists & inhibitors*
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Drug Design
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Humans
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Inhibitory Concentration 50
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Norleucine / analogs & derivatives*
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Norleucine / pharmacology
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Structure-Activity Relationship
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Substrate Specificity
Substances
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Boronic Acids
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Dipeptides
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Norleucine
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Dipeptidyl-Peptidases and Tripeptidyl-Peptidases
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dipeptidyl peptidase II