Facile, novel and efficient synthesis of new pyrazolo[3,4-b]pyridine products from condensation of pyrazole-5-amine derivatives and activated carbonyl groups
作者:A. Ghaedi、G. R. Bardajee、A. Mirshokrayi、M. Mahdavi、A. Shafiee、T. Akbarzadeh
DOI:10.1039/c5ra16769h
日期:——
An efficientsynthesis of novel ethyl-1,3,4-triphenyl-1H-pyrazolo[3,4-b]pyridine-6-carboxylate products has been achieved via condensation of pyrazole-5-amine derivatives and activated carbonyl groups, in refluxing acetic acid. This process has been found to be useful in the preparation of new N-fused heterocycle products in good to excellent yields.
通过吡唑-5-胺衍生物与活化羰基的缩合反应,已成功合成了新颖的-1,3,4-三苯基-1H-吡唑并[3,4- b ]吡啶-6-羧酸乙酯产品。回流乙酸。已经发现该方法可用于以良好至优异的产率制备新的N-稠合杂环产物。
Simple and efficient syntheses of novel benzo[4,5]imidazo[1,2-a]pyridine derivatives
A novel series of benzo[4,5]imidazo[1,2-a]pyridine derivatives is synthesized through the reaction of 2-(1H-benzo[d]imidazol-2-yl)acetonitrile and different ethyl 2,4-dioxo-4-arylbutanoate derivatives in the presence of piperidine in refluxing EtOH. All the products are easily prepared within 25–45 min in good to excellent yields.
通过2-(1H-苯并[ d ]咪唑-2-基)乙腈与不同的2,4-乙基的反应合成了一系列新的苯并[4,5]咪唑并[1,2- a ]吡啶衍生物。在哌啶存在下,在回流的EtOH中,生成二氧-4-芳基丁酸酯衍生物。所有产品都可以在25–45分钟内轻松制备,并具有良好的良率。
SUBSTITUTED PYRAZOLAMIDES AND THEIR USE
申请人:SCHOHE-LOOP Rudolf
公开号:US20110172207A1
公开(公告)日:2011-07-14
The present invention relates to novel substituted pyrazolamides, methods for their preparation, their use for the treatment and/or prophylaxis of diseases, as well as their use for the manufacture of medicaments for the treatment and/or prophylaxis of diseases, especially of retroviral diseases, in humans and/or animals.
The complex pathophysiology of Alzheimer's disease (AD) has prompted researchers to develop multitarget-directed molecules to find an effective therapy against the disease. In this context, a novel series of N-(1-benzylpiperidin-4-yl)-5-arylisoxazole-3-carboxamide derivatives were designed, synthesized, and evaluated against acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). In vitro biological
HETEROCYCLIC COMPOUND AND p27Kip1 DEGRADATION INHIBITOR
申请人:Uchida Hiroshi
公开号:US20130079306A1
公开(公告)日:2013-03-28
A novel heterocyclic compound or a salt thereof useful for selectively inhibiting the degradation of p27
Kip1
is provided. The compound or the salt thereof is represented by the following formula (1):
wherein A represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group, the group A may have a substituent; the ring B represents a 5- to 8-membered monocyclic heterocyclic ring or a condensed ring containing the monocyclic heterocyclic ring, the ring B may have a substituent; the ring C represents an aromatic ring, the ring C may have a substituent; L represents a linker comprising a main chain having 3 to 5 atoms selected from the group consisting of a carbon atom, a nitrogen atom, an oxygen atom and a sulfur atom, wherein at least one atom in the main chain is a hetero atom selected from the group consisting of a nitrogen atom, an oxygen atom and a sulfur atom, the linker L may have a substituent; and n is 0 or 1.