EXP-3174, also known as Losartan Carboxylic Acid, is a physiologically active metabolite of losartan, produced by cytochrome P450 isoforms in the liver. Like the parent compound, EXP-3174 is a potent AT1 antagonist (Kis = 0.57 and 0.67 nM for rat and human forms, respectively), producing a depressor response and vasodilatation. When administered intravenously, losartan carboxylic acid is more potent and has a longer duration of action than losartan. However, the metabolite has very low oral bioavailability.
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Chemical Information
Name
EXP-3174
Iupac Chemical Name
EXP-3174
Synonyms
EXP 3174; EXP3174; E-3174; E 3174; E3174; Losartan Carboxylic Acid