Hypolipidemic activity of phthalimide derivatives. 7. Structure-activity studies of indazolone analogs
摘要:
The apparent benefit of limiting serum cholesterol and triglyceride levels either by dietary restriction or drug therapy has prompted work in our laboratories toward development of a suitable antihyperlipidemic agent. We have demonstrated the antihyperlipidemic activity of a series of phthalimide derivatives in rodents to be significantly greater than that of clofibrate at a dose of 20 mg/(kg day), intraperitoneally. Here we report the synthesis and biological evaluation of a series of indazolone derivatives, which are heterocycles that are structurally related to the phthalimides . In general, structure-activity relationships within the phthalimide series may be extended to the indazolones . While indazolone itself is only moderately active, N1-carbethoxy substitution produced a more active compound. Substitution of the N2 position with an n-butyl group afforded the most active compound, as also seen in the phthalimide series. Aromatic substitution with electron-releasing and -withdrawing groups lessened the antihyperlipidemic activity.
[EN] SUBSTITUTED PYRAZOLOQUINAZOLINONES AND PYRROLOQUINAZOLINONES AS ALLOSTERIC MODULATORS OF GROUP IIMETABOTROPIC GLUTAMATE RECEPTORS [FR] PYRAZOLOQUINAZOLINONES ET PYRROLOQUINAZOLINONES SUBSTITUÉES EN TANT QUE MODULATEURS ALLOSTÉRIQUES DES RÉCEPTEURS MÉTABOTROPIQUES DU GLUTAMATE DU GROUPE II
[EN] INHIBITORS OF MYCOBACTERIUM TUBERCULOSIS LIPOAMIDE DEHYDROGENASE<br/>[FR] INHIBITEURS DE LA LIPOAMIDE DÉSHYDROGÉNASE DE MYCOBACTERIUM TUBERCULOSIS
申请人:UNIV CORNELL
公开号:WO2022150574A1
公开(公告)日:2022-07-14
Disclosed are compounds for inhibiting lipoamide dehydrogenase (Lpd), and methods of treating tuberculosis.
本发明涉及用于抑制脂肪酰胺脱氢酶(Lpd)的化合物和治疗结核病的方法。
FUSED POLYCYCLIC HETEROCYCLE DERIVATIVES
申请人:Eisai Co., Ltd.
公开号:EP0831094A1
公开(公告)日:1998-03-25
Novel fused polycyclic heterocycle derivatives having excellent antitumor effects and a process for producing the same.
A compound represented by the following general formula (I) or pharmacologically acceptable salts thereof:
wherein the ring A represents an optionally substituted monocyclic aromatic ring or a dicyclic fused ring in which at least one of the rings is an aromatic ring; the ring B represents pyrrole, 4H-1,4-oxazine, 4H-1,4-thiazine or 4(1H)-pyridone; the ring C represents an optionally substituted, monocyclic or dicyclic fused aromatic ring; and Y represents a group represented by the formula -e-f (wherein e represents a lower alkylene; and f represents amidino, guanidino or amino optionally substituted by optionally hydroxylated or optionally lower-alkylaminated lower alkyl;
provided that the cases where the rings A and B are both optionally substituted monocyclic aromatic rings are excluded.
Which has an excellent antitumor activity.
具有优异抗肿瘤效果的新型融合多环杂环衍生物及其生产工艺。
由以下通式(I)代表的化合物或其药理学上可接受的盐:
其中,环 A 代表任选取代的单环芳香环或二环融合环,其中至少有一个环是芳香环; 环 B 代表吡咯、4H-1,4-恶嗪、4H-1,4-噻嗪或 4(1H)-吡啶酮;环 C 代表任选取代的单环或双环融合芳环;以及 Y 代表由式-e-f 所代表的基团(其中 e 代表低级亚烷基;f 代表脒基、胍基或任选被羟基化或任选被低级烷基酰胺化的低级烷基取代的氨基);
但不包括环 A 和环 B 均为任选取代的单环芳香环的情况。
具有极佳的抗肿瘤活性。
Synthesis of New Pyrazolo[1,5-<i>α</i>]quinazoline Derivatives
The reaction of various anthranilic acid derivatives or their esters with 4-oxotetrahydrothiophene-3-carbonitrile 2, 2-oxocyclopentanecarbonitrile (9, n=1) or 2-oxocyclohexanecarbonitrile (9, n=2) in ethanol under reflux conditions giving rise the formation of single products isolated in each case after simple filtration. The products were characterized as pyrazolo[1,5-a]quinazolin-5-ones 4 instead of the expected pyrazol-3-amines 3. These cascade condensation-intramolecular acylation processes generated in one-step reactions from simple starting materials novel heterocyclic scaffolds ready for further functionalization. The present synthetic protocol provides acceptable yields of new tetracyclic products in high purity.