Article
Chemistry, Physical
Sandhya Rani Bandi, Ravikumar Kapavarapu, Rambabu Palabindela, Mohammad Azam, Kim Min, Sirassu Narsimha
Summary: In this study, novel compounds were designed and synthesized, and their inhibitory action against EGFR kinases and anti-proliferative activity were investigated. The results showed that compounds 4d and 4e exhibited excellent activity against cancer cell lines, with better binding energy and pharmacokinetic profile compared to the lead compound.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Biochemistry & Molecular Biology
Jianfang Fu, Jie Yu, Xiang Zhang, Yaoyao Chang, Hongze Fan, Mengzhen Dong, Mengjia Li, Yue Liu, Jinxing Hu
Summary: In this study, two series of EGFR kinase inhibitors were designed and synthesised. Compound B1 showed selective inhibition against EGFR (L858R/T790M) with an IC50 value of 13 nM and a 76-fold selectivity for EGFR (WT). In vitro experiments demonstrated that compound B1 effectively inhibited proliferation of H1975 cells with an IC50 value of 0.087 μM. Mechanistic studies confirmed the selective inhibition of EGFR (L858R/T790M) by compound B1 through cell migration and apoptosis assays.
JOURNAL OF ENZYME INHIBITION AND MEDICINAL CHEMISTRY
(2023)
Review
Chemistry, Multidisciplinary
Adarsh Kumar, Kuber Kumar Bhagat, Ankit Kumar Singh, Harshwardhan Singh, Tanuja Angre, Amita Verma, Habibullah Khalilullah, Mariusz Jaremko, Abdul-Hamid Emwas, Pradeep Kumar
Summary: This study focuses on pyrido[2,3-d]pyrimidine derivatives as anticancer agents, which have emerged as a promising scaffold in medicinal chemistry with a broad spectrum of activities. The study covers the inhibition mechanisms, structure-activity relationship, and signaling pathways of these derivatives against various cancer targets. The review provides a comprehensive medicinal and pharmacological profile of pyrido[2,3-d]pyrimidines and offers insights for designing new selective, effective, and safe anticancer agents.
Article
Biochemistry & Molecular Biology
Ibrahim S. Al Nasr, Angela Corona, Waleed S. Koko, Tariq A. Khan, Ridha Ben Said, Ismail Daoud, Seyfeddine Rahali, Enzo Tramontano, Rainer Schobert, Noureddine Amdouni, Bernhard Biersack
Summary: A series of 1H-indeno[2',1'-5,6]dihydropyrido[2,3-d]pyrimidine and 1H-indeno[2',1'-5,6]pyrido[2,3-d]pyrimidine derivatives were synthesized and screened for their activity against parasites and viral RNase H. Some compounds exhibited significant activity against Toxoplasma gondii parasites and Leishmania major amastigotes, suggesting further investigation is warranted. A HIV-1 RNase H assay was used to study the RNase H inhibition of selected compounds, and docking simulations were performed to investigate their binding to the active site of the HIV-1 RNase H enzyme. Compound 2a, which was inactive against parasites, showed distinct HIV-1 RNase H inhibitory activity, suggesting that ring substitution determines the antiparasitic or HIV-1 RNase H inhibitory activity of this compound class.
BIOORGANIC & MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Medicinal
Ichiro Takasaki, Ai Watanabe, Takuya Okada, Daisuke Kanayama, Ryota Nagashima, Miyu Shudo, Ayaka Shimodaira, Kazuto Nunomura, Bangzhong Lin, Yurie Watanabe, Hiroaki Gouda, Atsuro Miyata, Takashi Kurihara, Naoki Toyooka
Summary: A series of pyrido[2,3-d]pyrimidine derivatives based on PA-8 were synthesized and evaluated, and compound 2o showed more potent antagonistic activities than PA-8. It could block PACAP-induced aversive behaviors and mechanical allodynia, and potentially become an analgesic for neuropathic pain treatment.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Review
Chemistry, Organic
Ankita Chaudhary
Summary: Pyrido[2,3-d]pyrimidines play a significant role in medicinal chemistry due to their diverse biological activities, and their synthesis is an ongoing area of research. Constructing biologically relevant moieties through a multicomponent approach is a promising research direction, driven by the increasing emphasis on 'green chemistry'.
CURRENT ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Medicinal
Joana F. Campos, Thierry Besson, Sabine Berteina-Raboin
Summary: This review lists the structures composed of a pyridopyrimidine moiety that have shown therapeutic interest or have been approved for use as therapeutics. Synthetic protocols for preparing these pyridopyrimidine derivatives are considered. The review is organized into four sections, categorized by the type of pyridopyrimidine. For each compound, the biological activity and synthetic route are presented. The bibliographic research for each type of pyridopyrimidine was conducted using Reaxys and Scifinder.
Article
Chemistry, Medicinal
Zhendong Song, Linlin Lou, Guangjin Fan, Lu Liu, Yang Ge, He Liu, Albert S. C. Chan, Xiaolei Zhang, Xiao-Feng Xiong
Summary: Oncogene KRAS plays important roles in human cancers by regulating cell proliferation, differentiation, and migration. Recent advancements have shown that targeting KRAS G12C directly with allosteric inhibitors that bind to the switch II pocket is feasible. In this study, a series of pyrrolo[2,3-d]pyrimidine derivatives were designed and synthesized, leading to the discovery of compound 50 with high KRAS/SOS1 inhibitory potency and strong anti-proliferation activities on cancer cells harboring KRAS p.G12C. Compound 50 also exhibited satisfactory selectivity, moderate pharmacokinetic characteristics, and good anticancer effects in vivo.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Review
Chemistry, Organic
Tamer El Malah, Randa Abdel E. Mageid, Ahmed H. Shamroukh
Summary: The current review mainly focused on the synthetic methods of pyrido[2,3-d]pyrimidine derivatives and their reactions with important pharmaceutical and biological activities.
CURRENT ORGANIC CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Lijing Min, Wei Liang, Joanna Bajsa-Hirschel, Peng Ye, Qiao Wang, Xinpeng Sun, Charles L. Cantrell, Liang Han, Nabo Sun, Stephen O. Duke, Xinghai Liu
Summary: Natural products are a valuable source for discovering new chemical entities for drugs and pesticides. In this study, a series of new pyrido[2,3-d] pyrimidine derivatives were designed and synthesized as potential herbicides. The most active compound showed comparable activity to commercial herbicides.
Article
Chemistry, Organic
Xiaoyu Tang, Aihua Zheng, Fengxu Wu, Chujie Liao, Yanggen Hu, Chao Luo
Summary: A series of diverse furo[2,3-d]pyrimidines and benzofuro[3,2-d]pyrimidines were synthesized and screened for their antitumor effects. Compound 4a showed the best activity against HepG2 cell lines and was found to have possible binding modes with receptor tyrosine kinase.
SYNTHETIC COMMUNICATIONS
(2022)
Article
Chemistry, Medicinal
Namkyoung Kim, Chan-Jung Park, Younghoon Kim, SeongShick Ryu, Hanna Cho, Yunju Nam, Myeonggil Han, Jeon-Soo Shin, Taebo Sim
Summary: We designed and synthesized pyrido[3,4-d]pyrimidine derivatives as novel necroptosis inhibitors capable of suppressing the phosphorylation of MLKL. Our SAR studies revealed that compound 20 exhibited comparable inhibitory activity against RIPK3-mediated pMLKL in HT-29 cells relative to the selective inhibitor GSK872. Furthermore, 20 demonstrated selectivity towards RIPK3 over RIPK1 and inhibited necroptosis by impeding MLKL oligomerization.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2023)
Article
Chemistry, Physical
Milad Motamedi, Sajjad Ghodrati, Ali Ashtiani Abdi, Soheila Khajeh Dangolani, Farhad Panahi
Summary: The new synthetic bio/green corrosion inhibitor PPAC shows excellent inhibitory effects on steel substrate exposed to 1 M HCl electrolyte, leading to a significant reduction in corrosion current density and high inhibition efficiency. The combination of image processing method and mathematical model successfully reproduced experimental data, revealing the adsorption mechanism and corrosion inhibition principle of PPAC.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Medicinal
Ling Li, Jin Liu, Zichao Yang, Huiting Zhao, Bulian Deng, Yichang Ren, Ruiyao Mai, Junli Huang, Jianjun Chen
Summary: A series of novel thieno[2,3-d]pyrimidine analogs were designed and synthesized as KRAS G12D inhibitors. Compound KD-8 exhibited potent antiproliferative activity and antitumor efficacy by decreasing the active form of KRAS and inhibiting Raf and Erk in KRAS G12D mutated cancer cell lines.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
Chetan Jadhav, Amol Nipate, Asha Chate, Charansingh Gill
Summary: An operationally simple method for the assembly of pyrido[2,3-d]pyrimidine and pyrazolo[3,4-b]pyridine derivatives has been developed, achieving excellent yields and high purity. The study found that using 1 mmol of the ionic liquid catalyst under solvent-free conditions at 60 degrees Celsius is the optimal reaction parameter for constructing fused pyridine and pyrimidine derivatives. The methodology showed promising results under gram-scale conditions, suggesting potential applicability in both industrial and academic settings in the future.
Article
Environmental Sciences
Rajesh Pamanji, M. S. Bethu, B. Yashwanth, S. Leelavathi, J. Venkateswara Rao
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2015)
Article
Environmental Sciences
Rajesh Pamanji, B. Yashwanth, M. S. Bethu, S. Leelavathi, K. Ravinder, J. Venkateswara Rao
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2015)
Article
Chemistry, Organic
Veeraswamy Banda, Santhosh Kumar Gautham, Sambasiva Rao Pillalamarri, Kurumurthy Chavva, Narsaiah Banda
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2016)
Article
Chemistry, Organic
Jitender Dev Gaddameedi, Poornachandra Yedla, Ratnakar Reddy Kuchukulla, Kurumurthy Chavva, Sambasiva Rao Pillalamarri, Santhosh Kumar Gautham, Ganesh Kumar Chityal, Narsaiah Banda
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2017)
Article
Marine & Freshwater Biology
Bomma Yashwanth, Rajesh Pamanji, J. Venkateswara Rao
AQUATIC TOXICOLOGY
(2016)
Article
Environmental Sciences
Rajesh Pamanji, Bomma Yashwanth, Janapala Venkateswara Rao
ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY
(2016)
Article
Chemistry, Organic
P. Sambasiva Rao, K. Chinna Ashalu, G. Jitender Dev, N. Ravi Kumar, P. V. S. S. Srinivas, B. V. Thomas, B. Narsaiah
SYNTHETIC COMMUNICATIONS
(2017)
Article
Chemistry, Medicinal
K. Ratnakar Reddy, P. Sambasiva Rao, G. Jitender Dev, Y. Poornachandra, C. Ganesh Kumar, P. Shanthan Rao, B. Narsaiah
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2014)
Article
Chemistry, Medicinal
P. Sambasiva Rao, C. Kurumurthy, B. Veeraswamy, Y. Poornachandra, C. Ganesh Kumar, B. Narsaiah
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2014)
Article
Chemistry, Medicinal
Chavva Kurumurthy, Banda Veeraswamy, Pillalamarri Sambasiva Rao, Gautham Santhosh Kumar, Pamulaparthy Shanthan Rao, Velaturu Loka Reddy, Janapala Venkateswara Rao, Banda Narsaiah
BIOORGANIC & MEDICINAL CHEMISTRY LETTERS
(2014)
Article
Chemistry, Organic
B. Veeraswamy, G. Santhosh Kumar, P. Sambasiva Rao, C. Kurumurthy, B. Narsaiah
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2014)
Article
Chemistry, Organic
P. Sambasiva Rao, G. Malla Reddy, C. Kurumurthy, B. Veeraswamy, G. Santhosh Kumar, P. Shanthan Rao, B. Narsaiah
JOURNAL OF HETEROCYCLIC CHEMISTRY
(2014)
Article
Environmental Sciences
Dereddy Gangadhar, Paritala Venu Babu, Rajesh Pamanji, Koigoora Srikanth
Summary: This study evaluated the toxicity of alachlor on Eisenia fetida and found significant morphological changes in the earthworms exposed to the chemical for 24 hours. Differences in acetylcholinesterase (AChE), catalase (CAT), lipid peroxidation (LPO), and glutathione sulfotransferase (GST) were noted between control and treated E. fetida at different time intervals, indicating the neurotoxicity of alachlor on earthworms. The findings will be valuable in understanding the toxic effects of alachlor on non-target soil invertebrates.
WATER AIR AND SOIL POLLUTION
(2021)
Article
Materials Science, Multidisciplinary
Koigoora Srikanth, Nadakuditi Venkata Raju, Rajesh Pamanji, Venkatramaiah Nutalapati
Summary: The study investigates the toxicological impacts of silica nanoparticles (SiNPs) on freshwater snail Pila virens, revealing increased lipid peroxidation, protein carbonyl formation, and antioxidant enzyme levels in the snails exposed to SiNPs. The results suggest that P. virens can serve as a model organism for studying the toxicity of engineered nanomaterials.
Article
Materials Science, Multidisciplinary
Kasthuri Selvaraj, Prasanth Palanisamy, Marimuthu Manikandan, Praveen B. Managutti, Palanivelu Sangeetha, Sharmarke Mohamed, Rajesh Pamanji, Joseph Selvin, Sohrab Nasiri, Stepan Kment, Venkatramaiah Nutalapati
Summary: Two novel fluorescent fluorophores were developed for the analysis of latent fingerprints, showing high sensitivity and selectivity. The interaction between the fluorophores and the nitro analytes was studied, revealing a static quenching mechanism. The fluorophores also demonstrated non-toxic behavior and fluorescence imaging/tracking in zebrafish.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Medicinal
Shuang Mei, Su Jiang, Yuting Wang, Han Jing, Peng Yang, Miao-Miao Niu, Jindong Li, Kai Yuan, Yan Zhang
Summary: This study identifies a dual-targeting peptide, AP-1, that effectively inhibits variants of concern (VOCs) of SARS-CoV-2 without impairing host cell viability. The findings suggest that AP-1 could be a promising broad-spectrum agent for treating emerging VOCs of SARS-CoV-2.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Hyeonjun Lee, Ju Yeon Lee, Hyunsoo Jang, Hye Young Cho, Minhee Kang, Sang Hyun Bae, Suin Kim, Eunji Kim, Jaebong Jang, Jin Young Kim, Young Ho Jeon
Summary: By using liquid chromatography-tandem mass spectrometry and nuclear magnetic resonance experiments, we identified new chemical moieties that bind to the target sites of the protein of interest, allowing for reversible binding and protein degradation. This method has the potential to expand the application of PROTAC technology.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Yingying Li, Xiyou Du, Xinru Kong, Yuelin Fang, Zhijing He, Dongzhu Liu, Hang Wu, Jianbo Ji, Xiaoye Yang, Lei Ye, Guangxi Zhai
Summary: This study proposes a novel nanoplatform based on the autophagy cascade to overcome the obstacles in chemo-immunotherapy. The platform combines chemotherapy and starvation therapy to initiate pro-death autophagy and enhance antigen presentation, while also remodeling the immunosuppressive tumor microenvironment. Furthermore, the study discovers a new therapeutic direction for the respiration inhibitor 3-bromopyruvic acid (3BP) in cancer treatment. Overall, this study offers an opportunity to improve antitumor efficacy and boost immune responses.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Bingsi Wang, Mingxu Ma, Yusen Dai, Pengfei Yu, Liang Ye, Wenyan Wang, Chunjie Sha, Huijie Yang, Yingjie Yang, Yunjing Zhu, Lin Dong, Shujuan Wei, Linlin Wang, Jingwei Tian, Hongbo Wang
Summary: Breast cancer is a common malignant tumor in women, and drug resistance remains a clinical challenge. In this study, a novel compound, G-5b, was developed with potent antagonistic and degradation activities comparable to the current drug fulvestrant. G-5b also showed improved stability and solubility. Mechanistically, G-5b engages the proteasome pathway to degrade ER, inhibiting the ER signaling pathway and inducing apoptosis and cell cycle arrest. In animal models, G-5b exhibited superior pharmacokinetics and pharmacodynamics properties. Overall, G-5b is a promising long-acting SERD worthy of further investigation and optimization.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Karoline B. Waitman, Larissa C. de Almeida, Marina C. Primi, Jorge A. E. G. Carlos, Claudia Ruiz, Thales Kronenberger, Stefan Laufer, Marcia Ines Goettert, Antti Poso, Sandra V. Vassiliades, Vinicius A. M. de Souza, Monica F. Z. J. Toledo, Neuza M. A. Hassimotto, Michael D. Cameron, Thomas D. Bannister, Leticia Costa-Lotufo, Joa o A. Machado-Neto, Mauricio T. Tavares, Roberto Parise-Filho
Summary: A series of hybrid inhibitors combining pharmacophores of known kinase inhibitors and benzohydroxamate HDAC inhibitors were synthesized and evaluated for their anticancer activity and pharmacokinetic properties. Compounds 4d-f exhibited promising cytotoxicity against hematological cells and moderate activity against solid tumor models. Compound 4d showed potent inhibition of multiple kinase targets and had stable interactions with HDAC and members of the JAK family. These compounds showed selective cytotoxicity with minimal effects on non-tumorigenic cells and favorable pharmacokinetic profiles.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Michal Sulik, Diana Fontinha, Dietmar Steverding, Szymon Sobczak, Michal Antoszczak, Miguel Prudencio, Adam Huczynski
Summary: This study describes the synthesis of the first-in-class ivermectin derivatives obtained through derivatization of the C13 position, along with the unexpected rearrangement of the macrolide ring. These derivatives show potential for antiparasitic activity and are important for the development of new antiparasitic agents.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Jun Liu, Qiu-Xian Chen, Wen-Fu Wu, Dong Wang, Si -Yu Zhao, Jia-Hao Li, Yi-Qun Chang, Shao-Gao Zeng, Jia-Yi Hu, Yu-Jie Li, Jia-Xin Du, Shu-Meng Jiao, Hai-Chuan Xiao, Qiang Zhang, Jun Xu, Jian-Fu Zhao, Hai -Bo Zhou, Yong-Heng Wang, Jian Zou, Ping-Hua Sun
Summary: A new anti-infective drug strategy has been discovered to attenuate virulence and modulate inflammation caused by drug-resistant Pseudomonas aeruginosa infections. Compound 5f inhibits biofilm formation, macrophage migration, and inflammatory response induced by P. aeruginosa, showing potential as a novel candidate against drug-resistant infections.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Liuzeng Chen, Ke Wang, Lingyun Wang, Wei Wang, Lifan Wang, Jia Li, Xiaohan Liu, Mengya Wang, Banfeng Ruan
Summary: In this study, a series of novel anti-inflammatory compounds were designed and synthesized based on the natural product pterostilbene skeleton. Among them, compound 8 showed the highest activity and exhibited its effects through inhibition of pro-inflammatory cytokines by blocking the NF-KB/MAPK signaling pathway. Compound 8 also demonstrated a good relieving effect on acute colitis in mice and showed good safety in acute toxicity experiments.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)
Article
Chemistry, Medicinal
Si-Min Liang, Gui-Bin Liang, Hui-Ling Wang, Hong Jiang, Xian-Li Ma, Jian-Hua Wei, Ri-Zhen Huang, Ye Zhang
Summary: A series of novel multi-target antitumor agents were designed, synthesized, and evaluated. Some compounds exhibited significant antitumor activity and one compound showed excellent efficacy, limited toxicity, and low resistance. Further mechanism studies revealed that the compound exerted antitumor effects through multiple pathways.
EUROPEAN JOURNAL OF MEDICINAL CHEMISTRY
(2024)