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Design and synthesis of novel phthalazinone derivatives as potent poly(ADP-ribose)polymerase 1 inhibitors. 2020

Minhang Xin, and Jiajia Sun, and Wei Huang, and Feng Tang, and Zhaoyu Liu, and Qiu Jin, and Jia Wang
Department of Medicinal Chemistry, School of Pharmacy, Health Science Center, Xi'an Jiaotong University, No 76, Yanta West Road, Xi'an, 710061, PR China.

Aim: The development of effective PARP-1 inhibitors has received great enthusiasm in medicinal chemistry communities. Results: A new series of novel phthalazinone derivatives were designed and synthesized. Among these, B1 and B16 displayed more potent PARP-1 inhibitory activities than olaparib. B16 gave an IC50 value of 7.8 nM against PARP-1, and a PF50 value of 3.4 in the sensitizing effect assay. The in vivo pharmacokinetic properties evaluation showed B16 displayed insufficient oral exposure, and it was also not stable in rat blood. Conclusion: The results indicated that our design phthalazinone derivatives were potent PARP-1 inhibitors, and compound B16 was a valuable lead compound with significant in vitro efficacy, deserving further optimization to develop anticancer drug candidate.

UI MeSH Term Description Entries
D010793 Phthalazines Bicyclic heterocyclic compounds containing a BENZENE ring fused to PYRIDAZINE.
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000067856 Poly(ADP-ribose) Polymerase Inhibitors Chemicals and drugs that inhibit the action of POLY(ADP-RIBOSE)POLYMERASES. Inhibitors of Poly(ADP-ribose) Polymerase,PARP Inhibitor,Poly(ADP-Ribose) Polymerase Inhibitor,Poly(ADP-ribosylation) Inhibitor,Inhibitors of Poly(ADP-ribose) Polymerases,PARP Inhibitors,Poly(ADP-ribosylation) Inhibitors,Inhibitor, PARP,Inhibitors, PARP
D000071137 Poly (ADP-Ribose) Polymerase-1 A poly(ADP-ribose) polymerase that contains two ZINC FINGERS in its N-terminal DNA-binding region. It modifies NUCLEAR PROTEINS involved in chromatin architecture and BASE EXCISION REPAIR with POLY ADENOSINE DIPHOSPHATE RIBOSE. NAD+ ADP-ribosyltransferase-1,PARP-1 Protein,PARP1 Protein,Poly (ADP-Ribose) Synthase-1,NAD+ ADP ribosyltransferase 1,PARP 1 Protein
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D000970 Antineoplastic Agents Substances that inhibit or prevent the proliferation of NEOPLASMS. Anticancer Agent,Antineoplastic,Antineoplastic Agent,Antineoplastic Drug,Antitumor Agent,Antitumor Drug,Cancer Chemotherapy Agent,Cancer Chemotherapy Drug,Anticancer Agents,Antineoplastic Drugs,Antineoplastics,Antitumor Agents,Antitumor Drugs,Cancer Chemotherapy Agents,Cancer Chemotherapy Drugs,Chemotherapeutic Anticancer Agents,Chemotherapeutic Anticancer Drug,Agent, Anticancer,Agent, Antineoplastic,Agent, Antitumor,Agent, Cancer Chemotherapy,Agents, Anticancer,Agents, Antineoplastic,Agents, Antitumor,Agents, Cancer Chemotherapy,Agents, Chemotherapeutic Anticancer,Chemotherapy Agent, Cancer,Chemotherapy Agents, Cancer,Chemotherapy Drug, Cancer,Chemotherapy Drugs, Cancer,Drug, Antineoplastic,Drug, Antitumor,Drug, Cancer Chemotherapy,Drug, Chemotherapeutic Anticancer,Drugs, Antineoplastic,Drugs, Antitumor,Drugs, Cancer Chemotherapy
D013329 Structure-Activity Relationship The relationship between the chemical structure of a compound and its biological or pharmacological activity. Compounds are often classed together because they have structural characteristics in common including shape, size, stereochemical arrangement, and distribution of functional groups. Relationship, Structure-Activity,Relationships, Structure-Activity,Structure Activity Relationship,Structure-Activity Relationships
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D017207 Rats, Sprague-Dawley A strain of albino rat used widely for experimental purposes because of its calmness and ease of handling. It was developed by the Sprague-Dawley Animal Company. Holtzman Rat,Rats, Holtzman,Sprague-Dawley Rat,Rats, Sprague Dawley,Holtzman Rats,Rat, Holtzman,Rat, Sprague-Dawley,Sprague Dawley Rat,Sprague Dawley Rats,Sprague-Dawley Rats

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