Indazolinones, a new series of redox-active 5-lipoxygenase inhibitors with built-in selectivity and oral activity
摘要:
Since the hypothetical mechanisms of hydroperoxydation of arachidonic acid by, respectively, 5-lipoxygenase (5-LPO) and cyclooxygenase (CO) involve a redox cycle, a compound which reduces 5-LPO and CO to their inactive state would give a nonselective inhibitor of both enzymes. Structural modifications of such a compound could be expected to give improved potency and selectivity for 5-LPO and oral activity. Such an approach has led to the discovery of 1,2-dihydroindazol-3-ones which are potent 5-LPO inhibitors with various degrees of selectivity. Structure-activity relationship studies indicated that while N-1,N-2-unsubstituted and N-1-substituted derivatives are orally inactive, N-2-alkyl derivatives are orally active and inhibit both 5-LPO and CO. In contrast, N-2-benzyl derivatives are selective for 5-LPO but possess only weak oral activity. Further structural modifications have identified ICI 207968 [1,2-dihydro-2-(3-pyridylmethyl)-3H-indazol-3-one, 21a] which combines potent oral activity and high selectivity. Methemoglobin (MHb) induction by 21a in dog blood precluded its development for clinical use. Attempts at dissociating 5-LPO inhibitory properties and MHb formation showed that MHb formation in vitro seemed to be related to the redox potential of the compounds whereas 5-LPO inhibition was not. This study led to a series of 4-(N-n-pentylcarbamoyl)indazolinones which maintained in vitro 5-LPO potency but did not induce MHb.
Antitubercular and Antiparasitic 2-Nitroimidazopyrazinones with Improved Potency and Solubility
作者:Chee Wei Ang、Lendl Tan、Melissa L. Sykes、Neda AbuGharbiyeh、Anjan Debnath、Janet C. Reid、Nicholas P. West、Vicky M. Avery、Matthew A. Cooper、Mark A. T. Blaskovich
DOI:10.1021/acs.jmedchem.0c01372
日期:2020.12.24
additional efforts to generate analogs with improved solubility and enhanced potency. The key pendant aryl substituent was modified by (i) introducing polar functionality to the methylene linker, (ii) replacing the terminal phenyl group with less lipophilic heterocycles, or (iii) generating extended biaryl side chains. Improved antitubercular and antitrypanosomal activity was observed with the biaryl side
Retroviral protease inhibiting compounds of the formula: ##STR1## are disclosed.
翻译结果为:公开了具有以下公式的逆转录病毒蛋白酶抑制化合物:##STR1##。
[EN] HEPATITIS B CORE PROTEIN ALLOSTERIC MODULATORS<br/>[FR] MODULATEURS ALLOSTÉRIQUES DES PROTÉINES DU NOYAU DE L'HÉPATITE B
申请人:UNIV INDIANA RES & TECH CORP
公开号:WO2015138895A1
公开(公告)日:2015-09-17
ABSTRACT The present disclosure provides, in part, compounds having allosteric effector properties against Hepatitis B virus Cp. Also provided herein are methods of treating viral infections, such as hepatitis B, comprising administering to a patient in need thereof a disclosed compound.
NOVEL ANTIVIRAL PYRROLOPYRIDINE DERIVATIVES AND METHOD FOR PREPARING THE SAME
申请人:KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY
公开号:US20140249162A1
公开(公告)日:2014-09-04
The present invention relates to a pyrrolopyridine derivative represented by the Chemical Formula I, and a racemate or a stereoisomer thereof, or a pharmaceutically acceptable salt thereof, and relates to an antiviral composition including the same as an active ingredient. The compound of the Chemical Formula I has excellent antiviral activity and selectivity for wild type and resistant HIV-1, and thereby is useful as a therapeutic agent for acquired immune deficiency syndrome (AIDS).