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Zhang Q, Zhang W, Cui R, Zhang Y, Niu D. Synthesis of 2,4-diarylated pyrimidines enabled by Ni-catalyzed C–sulfone bond activation. Org Chem Front 2023. [DOI: 10.1039/d2qo01935c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The readily available pyrimidinyl sulfones, in which the C–S bond is cleaved selectively, could serve as electrophiles in the Ni-catalyzed cross-coupling reactions to prepare 2,4-diarylated pyrimidines under mild conditions with a broad scope.
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Affiliation(s)
- Qian Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
- Sichuan Institute of Edible Fungi, Shizishan Road No. 4, Jinjiang district, Chengdu, China
| | - Wei Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Ruoyan Cui
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Yang Zhang
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
| | - Dawen Niu
- Department of Emergency, State Key Laboratory of Biotherapy and Cancer Center, West China Hospital and School of Chemical Engineering, Sichuan University, Chengdu, China
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Vidal M, Rodríguez‐Aguilar J, Aburto I, Aliaga C, Domínguez M. Reactivity of 4‐pyrimidyl Sulfonic Esters in Suzuki‐Miyaura Cross‐Coupling Reactions in Water Under Microwave Irradiation. ChemistrySelect 2021. [DOI: 10.1002/slct.202103280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matías Vidal
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - José Rodríguez‐Aguilar
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - Ignacio Aburto
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - Carolina Aliaga
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
- Centro de Nanociencia y Nanotecnología CEDENNA Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
| | - Moisés Domínguez
- Facultad de Química y Biología Universidad de Santiago de Chile Av. Bernardo O'Higgins 3363 Santiago Chile
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Bhanderi M, Shah J, Gorain B, Nair AB, Jacob S, Asdaq SMB, Fattepur S, Alamri AS, Alsanie WF, Alhomrani M, Nagaraja S, Anwer MK. Optimized Rivastigmine Nanoparticles Coated with Eudragit for Intranasal Application to Brain Delivery: Evaluation and Nasal Ciliotoxicity Studies. MATERIALS 2021; 14:ma14216291. [PMID: 34771817 PMCID: PMC8585143 DOI: 10.3390/ma14216291] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 10/14/2021] [Accepted: 10/20/2021] [Indexed: 12/22/2022]
Abstract
Rivastigmine, a reversible cholinesterase inhibitor, is frequently indicated in the management of demented conditions associated with Alzheimer disease. The major hurdle of delivering this drug through the oral route is its poor bioavailability, which prompted the development of novel delivery approaches for improved efficacy. Due to numerous beneficial properties associated with nanocarriers in the drug delivery system, rivastigmine nanoparticles were fabricated to be administer through the intranasal route. During the development of the nanoparticles, preliminary optimization of processing and formulation parameters was done by the design of an experimental approach. The drug-polymer ratio, stirrer speed, and crosslinking time were fixed as independent variables, to analyze the effect on the entrapment efficiency (% EE) and in vitro drug release of the drug. The formulation (D8) obtained from 23 full factorial designs was further coated using Eudragit EPO to extend the release pattern of the entrapped drug. Furthermore, the 1:1 ratio of core to polymer depicted spherical particle size of ~175 nm, % EE of 64.83%, 97.59% cumulative drug release, and higher flux (40.39 ± 3.52 µg.h/cm2). Finally, the intranasal ciliotoxicity study on sheep nasal mucosa revealed that the exposure of developed nanoparticles was similar to the negative control group, while destruction of normal architecture was noticed in the positive control test group. Overall, from the in vitro results it could be summarized that the optimization of nanoparticles' formulation of rivastigmine for intranasal application would be retained at the application site for a prolonged duration to release the entrapped drug without producing any local toxicity at the mucosal region.
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Affiliation(s)
- Mansi Bhanderi
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, India
| | - Jigar Shah
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, India
| | - Bapi Gorain
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology Mesra, Ranchi 835215, India
| | - Anroop B Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman 4184, United Arab Emirates
| | | | - Santosh Fattepur
- School of Pharmacy, Management and Science University, Seksyen 13, Shah Alam 40100, Malaysia
| | - Abdulhakeem S Alamri
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 26571, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif 26571, Saudi Arabia
| | - Walaa F Alsanie
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 26571, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif 26571, Saudi Arabia
| | - Majid Alhomrani
- Department of Clinical Laboratory Sciences, The Faculty of Applied Medical Sciences, Taif University, Taif 26571, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, Taif 26571, Saudi Arabia
| | - Sreeharsha Nagaraja
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Department of Pharmaceutics, Vidya Siri College of Pharmacy, Off Sarjapura Road, Bangalore 560035, India
| | - Md Khalid Anwer
- Department of Pharmaceutics, College of Pharmacy, Prince Sattam Bin Abdulaziz University, Al-Alkharj 11942, Saudi Arabia
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Pyrimidine Biosynthetic Enzyme CAD: Its Function, Regulation, and Diagnostic Potential. Int J Mol Sci 2021; 22:ijms221910253. [PMID: 34638594 PMCID: PMC8508918 DOI: 10.3390/ijms221910253] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 09/18/2021] [Accepted: 09/19/2021] [Indexed: 01/10/2023] Open
Abstract
CAD (Carbamoyl-phosphate synthetase 2, Aspartate transcarbamoylase, and Dihydroorotase) is a multifunctional protein that participates in the initial three speed-limiting steps of pyrimidine nucleotide synthesis. Over the past two decades, extensive investigations have been conducted to unmask CAD as a central player for the synthesis of nucleic acids, active intermediates, and cell membranes. Meanwhile, the important role of CAD in various physiopathological processes has also been emphasized. Deregulation of CAD-related pathways or CAD mutations cause cancer, neurological disorders, and inherited metabolic diseases. Here, we review the structure, function, and regulation of CAD in mammalian physiology as well as human diseases, and provide insights into the potential to target CAD in future clinical applications.
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