[EN] FUSED PIPERIDINES AS IP RECEPTOR AGONISTS FOR THE TREATMENT OF PAH AND RELATED DISORDERS [FR] PIPÉRIDINES CONDENSÉES UTILISÉES COMME AGONISTES DU RÉCEPTEUR IP POUR LE TRAITEMENT DE L'HTAP ET DE TROUBLES CONNEXES
组胺H4受体(H4R)是G蛋白偶联受体家族的成员,被认为是治疗特应性皮炎(AD)的潜在治疗靶标。已经公开了许多H4R拮抗剂,但是尚未开发出控制AD中瘙痒和炎症的有效药物。在这里,我们发现了一类新型的口服H4R拮抗剂,显示出强大的止痒和消炎活性以及对脱靶的极好的选择性。在内部构建的基于药效团的虚拟筛选系统成功鉴定了初始命中化合物9,随后的同源性模型指导的优化有效地引导我们发现了吡啶并[2,3- e ] tetrazolo [1,5- a ] pyrazine类似物48是一种有效且高度选择性的H4R拮抗剂的新型化学型。重要的是,在几种AD小鼠模型中,口服给药的化合物48在止痒和抗炎方面显示出显着的功效,并具有良好的药代动力学(PK)特征。因此,这些数据强烈表明我们的化合物48是用于治疗AD的有前途的临床候选药物。
(2022). Choline Chloride-based Eutectic Mixtures for Greener Synthesis of Quinoxaline-2,3-diol Derivatives and Terephthalaldehyde bis-(2-Aminophenylimine) Organic Preparations and Procedures International: Vol. 54, No. 2, pp. 157-166.
Pyridopyrazine derivatives have been known as Wnt‐2/β‐catenin signaling pathway inhibitors. Wnt‐2 overexpression may be involved in non‐small‐cell lung cancer (NSCLC). A novel 2‐(4‐[ 18F]fluorobutoxy)‐3‐(phenylethynyl)pyrido[3,2‐b]pyrazine was prepared to demonstrate the feasibility of NSCLC imaging agent by uptake of Wnt‐2 protein. It was synthesized with tosylated precursor using [ 18F]fluoride in radiochemical
Rationalization of Benzazole-2-carboxylate versus Benzazine-3-one/Benzazine-2,3-dione Selectivity Switch during Cyclocondensation of 2-Aminothiophenols/Phenols/Anilines with 1,2-Biselectrophiles in Aqueous Medium
作者:Tejas M. Dhameliya、Sumit S. Chourasiya、Eshan Mishra、Pradeep S. Jadhavar、Prasad V. Bharatam、Asit K. Chakraborti
DOI:10.1021/acs.joc.7b01548
日期:2017.10.6
insights of these cyclocondensation reactions using the hard–soft acid–base principle, quantum chemical calculations (density functional theory), and orbital interaction studies rationalize the selectivityswitch of benzothiazole-2-carboxylates versus benzazine-3-ones/benzazine-2,3-diones. The presence of water facilitates these cyclocondensation reactions by lowering of the energy barrier.
[EN] PYRIDOPYRAZINONES DERIVATIVES INSULIN SECRETION STIMULATORS, METHODS FOR OBTAINING THEM AND USE THEREOF FOR THE TREATMENT OF DIABETES<br/>[FR] DÉRIVÉS DE PYRIDOPYRAZINONE COMME STIMULATEURS DE LA SÉCRÉTION D'INSULINE, LEURS PROCÉDÉS D'OBTENTION ET LEUR UTILISATION POUR LE TRAITEMENT DU DIABÈTE
申请人:MERCK PATENT GMBH
公开号:WO2009109341A1
公开(公告)日:2009-09-11
The present invention relates to pyridopyrazinone derivatives of formula (I), wherein X, Y, Z1 W, A and R1 are as defined in claim 1, as insulin secretion stimulators. The invention also relates to the preparation and use of these pyridopyrazinone derivatives for the prophylaxis and/or treatment of diabetes and pathologies associated.
Provided is a kynurenine production inhibitor comprising a nitrogen-containing heterocyclic compound represented by formula (I):
(wherein R
50
and R
51
may be the same or different and each represent a hydrogen atom or the like, G
1
and G
2
may be the same or different and each represent a nitrogen atom or the like, X represents formula (III):
(wherein m
1
and m
2
may be the same or different and each represent an integer of 0 or 1, Y represents an oxygen atom or the like, and R
6
and R
7
may be the same or different and each represent a hydrogen atom or the like),
R
1
represents optionally substituted lower alkyl or the like, R
2
represents a hydrogen atom or the like, and R
3
represents optionally substituted lower alkyl or the like), and the like.