Pyridine derivatives

The inventors have assumed that inhibition of nocturnal activity of placental leucine aminopeptidase (P-LAP), i.e. aminopeptidase that cleaves AVP, would maintain and/or increase an endogenous AVP level to enhance the antidiuretic effect, which would contribute to a decreased number of nocturnal voi...

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Bibliographische Detailangaben
Hauptverfasser: Hiramoto, Masashi, Tsuchiya, Kazuyuki, Morikawa, Hiroshi, Ishihata, Akihiro, Inagaki, Yusuke, Takamatsu, Hajime, Kanai, Akira, Kawaguchi, Kenichi, Kazami, Junichi, Enjo, Kentaro
Format: Patent
Sprache:eng
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Zusammenfassung:The inventors have assumed that inhibition of nocturnal activity of placental leucine aminopeptidase (P-LAP), i.e. aminopeptidase that cleaves AVP, would maintain and/or increase an endogenous AVP level to enhance the antidiuretic effect, which would contribute to a decreased number of nocturnal voids, and have extensively studied compounds which inhibit P-LAP. As a result, the inventors have found that (2R)-3-amino-2-(pyridylmethyl)-2-hydroxy-propanoic acid derivatives have excellent P-LAP inhibitory activity. The inventors have evaluated antidiuretic effects in water-loaded rats and have found that the compounds increase endogenous AVP levels by inhibiting P-LAP and consequently reduce urine production. The present invention therefore provides compounds expected to be used as an agent for treating nocturia based on P-LAP inhibition.