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Singhal S, Manikrao Patil V, Verma S, Masand N. Recent advances and structure-activity relationship studies of DPP-4 inhibitors as anti-diabetic agents. Bioorg Chem 2024; 146:107277. [PMID: 38493634 DOI: 10.1016/j.bioorg.2024.107277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 02/02/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Diabetes mellitus (DM) is one of the largest public health problems worldwide and in the last decades various therapeutic targets have been investigated. For the treatment of type-2 DM (T2DM), dipeptidyl peptidase-4 (DPP-4) is one of the well reported target and has established safety in terms of cardiovascular complexicity. Preclinical and clinical studies using DPP-4 inhibitors have demonstrated its safety and effectiveness and have lesser risk of associated hypoglycaemic effect making it suitable for elderly patients. FDA has approved a number of structurally diverse DPP-4 inhibitors for clinical use. The present manuscript aims to focus on the well reported hybrid and non-hybrid analogues and their structural activity relationship (SAR) studies. It aims to provide structural insights for this class of compounds pertaining to favourable applicability of selective DPP-4 inhibitors in the treatment of T2DM.
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Affiliation(s)
- Shipra Singhal
- Department of Pharmaceutical Chemistry, KIET School of Pharmacy, KIET Group of Institutions, Delhi NCR, Ghaziabad, Uttar Pradesh, India
| | - Vaishali Manikrao Patil
- Charak School of Pharmacy, Chaudhary Charan Singh (CCS) University, Meerut, Uttar Pradesh, India; Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, Malaysia.
| | - Saroj Verma
- Department of Pharmacy, School of Medical and Allied Sciences, K. R. Mangalam University, Gurugram, India
| | - Neeraj Masand
- Department of Pharmacy, Lala Lajpat Rai Memorial Medical College, Meerut, Uttar Pradesh, India
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2
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Kang G, Xiao LJ, Hesp KD, Huh CW, Lian Y, Richardson P, Schmitt DC, Hong K, Yu JQ. Synthesis of Highly Substituted Aminotetrahydropyrans Enabled by Stereospecific Multivector C-H Functionalization. Org Lett 2024; 26:2729-2732. [PMID: 37294050 PMCID: PMC11161171 DOI: 10.1021/acs.orglett.3c01439] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Highly substituted aminotetrahydropyrans were synthesized via sequential C-H functionalizations. The process was initiated with a Pd(II)-catalyzed stereoselective γ-methylene C-H arylation of aminotetrahydropyran, followed by α-alkylation or arylation of the corresponding primary amine. The initial γ-C-H (hetero)arylation was compatible with a range of aryl iodides containing various substituents and provided the corresponding products in moderate to good yields. The subsequent α-alkylation or arylation of the isolated arylated products proceeded with high diastereoselectivity to afford value-added disubstituted aminotetrahydropyrans.
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Affiliation(s)
- Guowei Kang
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Li-Jun Xiao
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Kevin D. Hesp
- Treeline Biosciences, 500 Arsenal St, 2 Floor, Watertown, Massachusetts 02472
| | - Chan Woo Huh
- Medicine Design, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Yajing Lian
- Medicine Design, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Paul Richardson
- Medicine Design, Pfizer Inc., San Diego, California 92121, United States
| | - Daniel C. Schmitt
- Medicine Design, Pfizer Inc., Groton, Connecticut 06340, United States
| | - Kai Hong
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 North Torrey Pines Road, La Jolla, California 92037, United States
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3
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Ambhore JP, Laddha PS, Kide AA, Ajmire PV, Chumbhale DS, Navghare AB, Kuchake VG, Chaudhari PJ, Adhao VS. Medicinal Chemistry of Non-peptidomimetic Dipeptidyl Peptidase IV (DPP IV) Inhibitors for Treatment of Type-2 Diabetes Mellitus: Insights on Recent Development. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2023.135249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023]
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4
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An Efficient Microwave Assisted Copper Catalyzed C-3 Amination of 3-Bromopyrazolo[1,5–a]pyrimidine. Tetrahedron Lett 2023. [DOI: 10.1016/j.tetlet.2023.154393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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5
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Hassan AS, Morsy NM, Aboulthana WM, Ragab A. In vitro enzymatic evaluation of some pyrazolo[1,5-a]pyrimidine derivatives: Design, synthesis, antioxidant, anti-diabetic, anti-Alzheimer, and anti-arthritic activities with molecular modeling simulation. Drug Dev Res 2023; 84:3-24. [PMID: 36380556 DOI: 10.1002/ddr.22008] [Citation(s) in RCA: 20] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/14/2022] [Accepted: 10/25/2022] [Indexed: 11/18/2022]
Abstract
The strategy of utilizing nitrogen compounds in various biological applications has recently emerged as a powerful approach to exploring novel classes of therapeutics to face the challenge of diseases. A series of pyrazolo[1,5-a]pyrimidine-based compounds 3a-l and 5a-f were prepared by the direct cyclo-condensation reaction of 5-amino-1H-pyrazoles 1a, b with 2-(arylidene)malononitriles and 3-(dimethylamino)-1-aryl-prop-2-en-1-ones, respectively. The structures of the new pyrazolo[1,5-a]pyrimidine compounds were confirmed via spectroscopic techniques. The in vitro biological activities of all pyrazolo[1,5-a]pyrimidines 3a-l and 5a-f were evaluated by assaying total antioxidant capacity, iron-reducing power, the scavenging activity against 1-diphenyl-2-picryl-hydrazyl (DPPH) and 2, 2'-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radicals, anti-diabetic, anti-Alzheimer, and anti-arthritic biological activities. All compounds displayed good to potent bioactivity, and three compounds 3g, 3h, and 3l displayed the most active derivatives. Among these derivatives, compound 3l exhibited the highest antioxidant (total antioxidant capacity [TAC] = 83.09 mg gallic acid/g; iron-reducing power [IRP] = 47.93 µg/ml) and free radicals scavenging activities with (DPPH = 18.77 µg/ml; ABTS = 40.44%) compared with ascorbic acid (DPPH = 4.28 µg/ml; ABTS = 38.84%). Furthermore, compound 3l demonstrated the strongest inhibition of α-amylase with a percent inhibition of 72.91 ± 0.14 compared to acarbose = 67.92 ± 0.09%. Similarly, it displayed acetylcholinesterase inhibition of 62.80 ± 0.06%. However, compound 3i showed a significantly higher inhibition percentage for protein denaturation and proteinase at 20.66 ± 0.00 and 26.42 ± 0.06%, respectively. Additionally, some in silico ADMET properties were predicted and studied. Finally, molecular docking simulation was performed inside the active site of α-amylase and acetylcholinesterase to study their interactions.
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Affiliation(s)
- Ashraf S Hassan
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
| | - Nesrin M Morsy
- Organometallic and Organometalloid Chemistry Department, National Research Centre, Dokki, Cairo, Egypt
| | - Wael M Aboulthana
- Biochemistry Department, Biotechnology Research Institute, National Research Centre, Dokki, Cairo, Egypt
| | - Ahmed Ragab
- Chemistry Department, Faculty of Science (Boys), Al-Azhar University, Nasr City, Cairo, Egypt
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6
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Chi LL, Hao LL, Cai ZQ, Kong DL, Wang YN, Qin WT, Gao Y, Qu ZZ. Design, Synthesis, and Biological Evaluation of Novel Pyrazolo[1,5-a]pyrimidine and 1,3-Benzodiazine Derivatives as Potent Antitumor Agents. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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7
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Aggarwal R, Kumar S, Virender, Kumar A, Mohan B, Sharma D, Kumar V. Development of heterocyclic 2,7-diamino-3-phenylazo-6-phenylpyrazolo[1,5-a]pyrimidine as antimicrobial agent and selective probe for UV–visible and colorimetric detection of Hg2+ ions. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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8
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Fedotov VV, Valieva MI, Taniya OS, Aminov SV, Kharitonov MA, Novikov AS, Kopchuk DS, Slepukhin PA, Zyryanov GV, Ulomsky EN, Rusinov VL, Charushin VN. 4-(Aryl)-Benzo[4,5]imidazo[1,2- a]pyrimidine-3-Carbonitrile-Based Fluorophores: Povarov Reaction-Based Synthesis, Photophysical Studies, and DFT Calculations. Molecules 2022; 27:molecules27228029. [PMID: 36432130 PMCID: PMC9698514 DOI: 10.3390/molecules27228029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/15/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
A series of novel 4-(aryl)-benzo[4,5]imidazo[1,2-a]pyrimidine-3-carbonitriles were obtained through the Povarov (aza-Diels-Alder) and oxidation reactions, starting from benzimidazole-2-arylimines. Based on the literature data and X-ray diffraction analysis, it was discovered that during the Povarov reaction, [1,3] sigmatropic rearrangement leading to dihydrobenzimidazo[1,2-a]pyrimidines took place. The structures of all the obtained compounds were confirmed based on the data from 1H- and 13C-NMR spectroscopy, IR spectroscopy, and elemental analysis. For all the obtained compounds, their photophysical properties were studied. In all the cases, a positive emission solvatochromism with Stokes shifts from 120 to 180 nm was recorded. Aggregation-Induced Emission (AIE) has been illustrated for compound 6c using different water fractions (fw) in THF. The compounds 6c and 6f demonstrated changes in emission maxima or/and intensities after mechanical stimulation.
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Affiliation(s)
- Victor V. Fedotov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
- Correspondence: (V.V.F.); (O.S.T.)
| | - Maria I. Valieva
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Olga S. Taniya
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
- Correspondence: (V.V.F.); (O.S.T.)
| | - Semen V. Aminov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Mikhail A. Kharitonov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Alexander S. Novikov
- Institute of Chemistry, Saint Petersburg State University, 7/9 Universitetskaya Nab., 199034 Saint Petersburg, Russia
| | - Dmitry S. Kopchuk
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Pavel A. Slepukhin
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Grigory V. Zyryanov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Evgeny N. Ulomsky
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Vladimir L. Rusinov
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
| | - Valery N. Charushin
- Chemical Engineering Institute, Ural Federal University, 19 Mira St., 620002 Yekaterinburg, Russia
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Ebenezer O, Shapi M, Tuszynski JA. A Review of the Recent Development in the Synthesis and Biological Evaluations of Pyrazole Derivatives. Biomedicines 2022; 10:biomedicines10051124. [PMID: 35625859 PMCID: PMC9139179 DOI: 10.3390/biomedicines10051124] [Citation(s) in RCA: 46] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/04/2022] [Accepted: 05/06/2022] [Indexed: 12/12/2022] Open
Abstract
Pyrazoles are five-membered heterocyclic compounds that contain nitrogen. They are an important class of compounds for drug development; thus, they have attracted much attention. In the meantime, pyrazole derivatives have been synthesized as target structures and have demonstrated numerous biological activities such as antituberculosis, antimicrobial, antifungal, and anti-inflammatory. This review summarizes the results of published research on pyrazole derivatives synthesis and biological activities. The published research works on pyrazole derivatives synthesis and biological activities between January 2018 and December 2021 were retrieved from the Scopus database and reviewed accordingly.
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Affiliation(s)
- Oluwakemi Ebenezer
- Department of Chemistry, Faculty of Natural Science, Mangosuthu University of Technology, Durban 4026, South Africa; (O.E.); (M.S.)
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1, Canada
| | - Michael Shapi
- Department of Chemistry, Faculty of Natural Science, Mangosuthu University of Technology, Durban 4026, South Africa; (O.E.); (M.S.)
| | - Jack A. Tuszynski
- Department of Physics, University of Alberta, Edmonton, AB T6G 2E1, Canada
- Department of Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 1Z2, Canada
- Department of Mechanical and Aerospace Engineering, (DIMEAS), Politecnico di Torino, 10129 Turin, Italy
- Correspondence:
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10
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Lin C, Kong Y, Wang F, Rong R, Li X, Xiao R, Wu Z, Zhang Q, Wang L. Design, synthesis and evaluation of a series of novel long-acting dipeptidyl peptidase-4 inhibitors for the treatment of type 2 diabetes. Bioorg Chem 2022; 123:105767. [PMID: 35381556 DOI: 10.1016/j.bioorg.2022.105767] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 01/25/2022] [Accepted: 03/24/2022] [Indexed: 11/19/2022]
Abstract
Type 2 diabetes mellitus (T2DM) is one of the most popular chronic diseases around the whole world. To improve the compliance of patients, long-acting antidiabetic drugs needed to be developed. Dipeptidyl peptidase-4 (DPP-4) inhibitors are becoming increasingly important in the T2DM treatment due to the favorable properties. In the present study, a series of new substituted dihydropyrido [4',3':3,4] pyrazolo [1,5-a] pyrimidin-9(10H)-yl)-2-(2,5-difluorophenyl)tetrahydro-2H-pyran-3-amine were designed and synthesized as potent DPP-4 inhibitors. All compounds were characterized by 1H NMR, 13C NMR and HRMS and were evaluated in vitro. The inhibitory activity ranged from 0.43 to 12.70 μM while the inhibitory activity of positive control (omarigliptin) was 3.63 μM on DPP-4 in Caco-2 cells. Then pharmacokinetic studies were carried out in rats and compound 6c was finally selected for the further study because of its better pharmacokinetic profile. Additionally, preclinical pharmacological study of compound 6c exhibited extraordinary efficacy in vivo and good safety profile. In conclusion, compound 6c was considered as a promising DPP-4 inhibitor, which could be taken once a week or once every two weeks for the treatment of T2DM. More comprehensive researches will be carried out in the future for the further development of compound 6c.
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Affiliation(s)
- Chao Lin
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264000, China
| | - Ying Kong
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264000, China
| | - Furong Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Rong Rong
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264000, China
| | - Xiangping Li
- Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264000, China
| | - Rensong Xiao
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Ziqi Wu
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Qiuyan Zhang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China; Yantai Key Laboratory of Nanomedicine & Advanced Preparations, Yantai Institute of Materia Medica, Yantai 264000, China.
| | - Lin Wang
- School of Pharmacy, Key Laboratory of Molecular Pharmacology and Drug Evaluation (Yantai University), Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China.
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Huang W, Zhang L, Li Z. Advances in computer-aided drug design for type 2 diabetes. Expert Opin Drug Discov 2022; 17:461-472. [PMID: 35254188 DOI: 10.1080/17460441.2022.2047644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION The number of diabetic patients is increasing, posing a heavy social and economic burden worldwide. Traditional drug development technology is time-consuming and costly, and the emergence of computer-aided drug design (CADD) has changed this situation. This study reviews the applications of CADD in diabetic drug designing. AREAS COVERED In this article, the authors focus on the advance in CADD in diabetic drug design by elaborating the discovery, including peroxisome proliferator-activated receptor (PPAR), G protein-coupled receptor 40 (GPR40), dipeptidyl peptidase-IV (DDP-IV), protein tyrosine phosphatase 1B (PTP1B), sodium-dependent glucose transporter 2 (SGLT-2), and glucokinase (GK). Some drug discovery of these targets is related to CADD strategies. EXPERT OPINION There is no doubt that CADD has contributed to the discovery of novel anti-diabetic agents. However, there are still many limitations and challenges, such as lack of co-crystal complex, dynamic simulations, water, and metal ion treatment. In the near future, artificial intelligence (AI) may be a promising strategy to accelerate drug discovery and reduce costs by identifying candidates. Moreover, AlphaFold, a deep learning model that predicts the 3D structure of proteins, represents a considerable advancement in the structural prediction of proteins, especially in the absence of homologous templates for protein structures.
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Affiliation(s)
- Wanqiu Huang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China.,Key Laboratory of New Drug Discovery and Evaluation, Guangdong Pharmaceutical University, Guangzhou, PR China.,Guangzhou Key Laboratory of Construction and Application of New Drug Screening Model Systems, Guangdong Pharmaceutical University, Guangzhou, PR China
| | - Luyong Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China.,Key Laboratory of New Drug Discovery and Evaluation, Guangdong Pharmaceutical University, Guangzhou, PR China.,Guangzhou Key Laboratory of Construction and Application of New Drug Screening Model Systems, Guangdong Pharmaceutical University, Guangzhou, PR China.,Jiangsu Key Laboratory of Drug Screening, China Pharmaceutical University, Nanjing, PR China
| | - Zheng Li
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou, PR China.,Key Laboratory of New Drug Discovery and Evaluation, Guangdong Pharmaceutical University, Guangzhou, PR China
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Wang L, Li X, Kong Y, Wang F, Zhang Q, Lin C, Rong R. Pharmacokinetics, tissue distribution and excretion of compound 6c, a novel DPP-4 inhibitor, following intragastric administration in rats by ultra-performance liquid chromatography-tandem mass spectrometry. Eur J Pharm Sci 2022; 173:106162. [DOI: 10.1016/j.ejps.2022.106162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Revised: 12/16/2021] [Accepted: 03/02/2022] [Indexed: 11/03/2022]
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13
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Regioselective synthesis and theoretical calculations of Bis(pyrido[2′,3′:3,4]pyrazolo[1,5-a]pyrimidines) linked to benzofuran units via piperazine spacer: A DFT, MM2, and MMFF94 study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130802] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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14
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Lyapustin DN, Ulomsky EN, Balyakin IA, Shchepochkin AV, Rusinov VL, Chupakhin ON. Oxidative Aromatization of 4,7-Dihydro-6-nitroazolo[1,5-a]pyrimidines: Synthetic Possibilities and Limitations, Mechanism of Destruction, and the Theoretical and Experimental Substantiation. Molecules 2021; 26:4719. [PMID: 34443304 PMCID: PMC8401470 DOI: 10.3390/molecules26164719] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 07/30/2021] [Accepted: 08/02/2021] [Indexed: 11/16/2022] Open
Abstract
The reaction tolerance of the multicomponent process between 3-aminoazoles, 1-morpholino-2-nitroalkenes, and aldehydes was studied. The main patterns of this reaction have been established. Conditions for the oxidation of 4,7-dihydro-6-nitroazolo[1,5-a]pyrimidines were selected. Previous claims that the 4,7-dihydro-6-nitroazolo[1,5-a]pyrimidines could not be aromatised have now been refuted. Compounds with an electron-donor substituent at position seven undergo decomposition during oxidation. The phenomenon was explained based on experimental data, electro-chemical experiment, and quantum-chemical calculation. The mechanism of oxidative degradation has been proposed.
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Affiliation(s)
- Daniil N. Lyapustin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
| | - Evgeny N. Ulomsky
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
| | - Ilya A. Balyakin
- NANOTECH Centre, Ural Federal University, 620002 Ekaterinburg, Russia;
- Institute of Metallurgy, Ural Branch of the Russian Academy of Sciences, 620016 Ekaterinburg, Russia
| | - Alexander V. Shchepochkin
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
| | - Vladimir L. Rusinov
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
| | - Oleg N. Chupakhin
- Department of Organic and Biomolecular Chemistry, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; (D.N.L.); (E.N.U.); (O.N.C.)
- Institute of Organic Synthesis, Ural Branch of the Russian Academy of Sciences, S. Kovalevskaya Str., 22, 620041 Ekaterinburg, Russia;
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15
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Arias-Gómez A, Godoy A, Portilla J. Functional Pyrazolo[1,5- a]pyrimidines: Current Approaches in Synthetic Transformations and Uses As an Antitumor Scaffold. Molecules 2021; 26:2708. [PMID: 34063043 PMCID: PMC8125733 DOI: 10.3390/molecules26092708] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/26/2021] [Accepted: 04/27/2021] [Indexed: 12/29/2022] Open
Abstract
Pyrazolo[1,5-a]pyrimidine (PP) derivatives are an enormous family of N-heterocyclic compounds that possess a high impact in medicinal chemistry and have attracted a great deal of attention in material science recently due to their significant photophysical properties. Consequently, various researchers have developed different synthesis pathways for the preparation and post-functionalization of this functional scaffold. These transformations improve the structural diversity and allow a synergic effect between new synthetic routes and the possible applications of these compounds. This contribution focuses on an overview of the current advances (2015-2021) in the synthesis and functionalization of diverse pyrazolo[1,5-a]pyrimidines. Moreover, the discussion highlights their anticancer potential and enzymatic inhibitory activity, which hopefully could lead to new rational and efficient designs of drugs bearing the pyrazolo[1,5-a]pyrimidine core.
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Affiliation(s)
| | | | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia; (A.A.-G.); (A.G.)
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