Abstract
The design, synthesis and SAR of sulfonamidopyrrolidinone fXa inhibitors incorporating a new benzamidine isostere, namely aminoisoquinolines, is described. These inhibitors have higher Caco-2 cell permeability than comparable benzamidines and attain higher levels of exposure upon oral dosing. The most potent member 14b (fXa Ki=6 nM) is selective against other serine proteases of interest (>600 fold).
MeSH terms
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Administration, Oral
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Animals
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Binding Sites
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Dogs
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Factor Xa Inhibitors*
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Isoquinolines / administration & dosage
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Isoquinolines / chemical synthesis*
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Isoquinolines / pharmacology
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Serine Proteinase Inhibitors / administration & dosage
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Serine Proteinase Inhibitors / chemical synthesis*
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Serine Proteinase Inhibitors / pharmacology
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Structure-Activity Relationship
Substances
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Factor Xa Inhibitors
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Isoquinolines
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Serine Proteinase Inhibitors