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Pyrazole and isoxazole derivatives as new, potent, and selective 20-hydroxy-5,8,11,14-eicosatetraenoic acid synthase inhibitors.

Abstract：

:In a previous paper, we reported the N-hydroxyformamidine derivative HET0016 as a potent and selective 20-HETE synthase inhibitor. Despite its attraction as a potential therapeutic agent for cerebral diseases, the preparation of an injectable formulation of HET0016 was limited by its poor solubility under neutral conditions and instability under acidic conditions. The instability of HET0016 in acidic conditions is due to the N-hydroxyformamidine moiety, which is considered to be essential for the potent and selective activity seen in our previous study. The activity was maintained when the N-hydroxyformamidine moiety was replaced by an imidazole ring (3a; IC(50) = 5.7 +/- 1.0 nM), but this was associated with a loss of selectivity for cytochrome p450s (CYPs). However, other azole derivatives such as isoxazole derivative 23 (IC(50) value 38 +/- 10 nM) and pyrazole derivative 24 (IC(50) value 23 +/- 12 nM) showed potent and selective activities with improved stability.

journal_name

J Med Chem

journal_title

Journal of medicinal chemistry

authors

Nakamura T,Sato M,Kakinuma H,Miyata N,Taniguchi K,Bando K,Koda A,Kameo K

doi

10.1021/jm020557k

keywords:

subject

Has Abstract

pub_date

2003-12-04 00:00:00

pages

5416-27

issue

25

eissn

0022-2623

issn

1520-4804

journal_volume

46

pub_type

杂志文章

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