16054-93-6Relevant articles and documents
Pyrido[1,2-a]pyrimidin-4-one derivatives as a novel class of selective aldose reductase inhibitors exhibiting antioxidant activity
La Motta, Concettina La,Sartini, Stefania,Mugnaini, Laura,Simorini, Francesca,Taliani, Sabrina,Salerno, Silvia,Marini, Anna Maria,Da Settimo, Federico,Lavecchia, Antonio,Novellino, Ettore,Cantore, Miriam,Failli, Paola,Ciuffi, Mario
, p. 4917 - 4927 (2007)
2-Phenyl-pyrido[1,2-a]pyrimidin-4-one derivatives bearing a phenol or a catechol moiety in position 2 were tested as aldose reductase (ALR2) inhibitors and exhibited activity levels in the micromolar/submicromolar range. Introduction of a hydroxy group in
New efficient approach for the synthesis of 2-alkyl(aryl) substituted 4H-pyrido[1,2-a]pyrimidin-4-ones
Bonacorso, Helio G.,Righi, Fernando J.,Rodrigues, Isadora R.,Cechinel, Cleber A.,Costa, Michelle B.,Wastowski, Arci D.,Martins, A. P. Marcos,Zanatta, Nilo
, p. 229 - 233 (2006)
A new, efficient and easy route for the preparation of a series of 2-alkyl(aryl) substituted 4-oxo-4H-pyrido[l,2-a]pyrimidines, where alkyl = CH3; aryl = C6H5, 4-FC6H 4,4-ClC6H4,
Silver-catalyzed highly efficient synthesis of pyrido[1,2-a]pyrimidin-4-ones from 2-aminopyridines and alkynoates
Chen, Zhengwang,Wen, Yuelu,Ding, Hao,Luo, Guotian,Ye, Min,Liu, Liangxian,Xue, Jun
, p. 13 - 16 (2017)
Pyrimidinone is one of the important nitrogen containing heterocycles due to their wide range of bioactivities. An efficient silver-catalyzed intermolecular cyclization of 2-aminopyridines with various alkynoates has been developed. 2-Substituted 4H-pyrido[1,2-a]pyrimidin-4-ones containing a wide range of functional groups are synthesized in the standard conditions. This transformation is conducted under convenient conditions and affords products in good yields.
Identification of novel SIRT1 activators endowed with cardioprotective profile
Brogi, Simone,Calderone, Vincenzo,Flori, Lorenzo,La Motta, Concettina,Petrarolo, Giovanni,Testai, Lara
, (2021/07/21)
Drugs targeting epigenetic mechanisms are attracting the attention of scientists since it was observed that the modulation of this post-translational apparatus, could help to identify innovative therapeutic strategies. Among the epigenetic druggable targe
Transition-metal-free lactamization of C(sp3)-H bonds with CO2: Facile generation of pyrido[1,2-: A] pyrimidin-4-ones
Zhang, Zhen,Zhou, Xiao-Yu,Wu, Jin-Gui,Song, Lei,Yu, Da-Gang
supporting information, p. 28 - 32 (2020/01/13)
A novel carbonylation of C(sp3)-H bonds in pyridylamines with one atmosphere of CO2 is reported to synthesize important pyrimidinones in good yields. This transition-metal-free and redox-neutral process features the use of a nontoxic
Method for synthesizing pyrimidinone compound under participation of CO2
-
Paragraph 0043; 0048-0052; 0057; 0061, (2020/03/05)
The invention provides a method for synthesizing a pyrimidinone compound under the participation of CO2, the structural formula of the pyrimidinone compound is shown as a formula (I), and a reaction substrate is shown as a formula (II); wherein R1, R2 and
Practical synthesis of 4H-pyrido[1, 2-a]pyrimidin-4-ones using ethylene glycol as a promoting solvent
Hussain, Mustafa,Liu, Jianhui
supporting information, (2020/08/13)
A simple and useful protocol leading to different 4H-pyrido[1, 2-a] pyrimidin-4-ones have been established by cyclization of various 2-amino pyridines with β-oxo ester or alkynoate. The use of ethylene glycol was demonstrated to facilitate this condensati
Manganese-Catalyzed Carbonylative Annulations for Redox-Neutral Late-Stage Diversification
Liang, Yu-Feng,Steinbock, Ralf,Münch, Annika,Stalke, Dietmar,Ackermann, Lutz
supporting information, p. 5384 - 5388 (2018/04/09)
An inexpensive, nontoxic manganese catalyst enabled unprecedented redox-neutral carbonylative annulations under ambient pressure. The manganese catalyst outperformed all other typically used base and precious-metal catalysts. The outstanding versatility o
Scaffold-hopping of bioactive flavonoids: Discovery of aryl-pyridopyrimidinones as potent anticancer agents that inhibit catalytic role of topoisomerase IIα
Priyadarshani, Garima,Amrutkar, Suyog,Nayak, Anmada,Banerjee, Uttam C.,Kundu, Chanakya N.,Guchhait, Sankar K.
, p. 43 - 54 (2016/07/06)
A strategy of scaffold-hopping of bioactive natural products, flavones and isoflavones, leading to target-based discovery of potent anticancer agents has been reported for the first time. Scaffold-hopped flavones, 2-aryl-4H-pyrido[1,2-a]pyrimidin-4-ones and the scaffold-hopped isoflavones, 3-aryl-pyrido[1,2-a]pyrimidin-4-ones were synthesized via Pd-catalyzed activation–arylation methods. Most of the compounds were found to exhibit pronounced human topoisomerase IIα (hTopoIIα) inhibitory activities and several compounds were found to be more potent than etoposide (a hTopoIIα-inhibiting anticancer drug). These classes of compounds were found to be hTopoIIα-selective catalytic inhibitors while not interfering with topoisomerase I and interacted with DNA plausibly in groove domain. Cytotoxicities against various cancer cells, low toxicity in normal cells, and apoptotic effects were observed. Interestingly, compared to parent flavones/isoflavones, their scaffold-hopped analogs bearing alike functionalities showed significant/enhanced hTopoIIα-inhibitory and cytotoxic properties, indicating the importance of a natural product-based scaffold-hopping strategy in the drug discovery.
Simple and efficient protocol for synthesis of pyrido[1,2-a]pyrimidin-4-one derivatives over solid heteropolyacid catalysts
Basahel, Sulaiman N.,Ahmed, Nesreen S.,Narasimharao, Katabathini,Mokhtar, Mohamed
, p. 11921 - 11932 (2016/02/12)
Aluminium exchanged tungstophosphoric acid salts with Keggin structure (AlxH3-xPW12O40) were prepared by simple ion exchange method. The prepared heteropolyacid salts were characterized by various techniques suc