Discovery and optimizing polycyclic pyridone compounds as anti-HBV agents.

Abstract:

INTRODUCTION:Hepatitis B disease is caused by the hepatitis B virus (HBV), which is a DNA virus that belongs to the Hepadnaviridae family. It is a considerable health burden, with 257 million active cases globally. Long-standing infection may create a fundamental cause of liver disease and chronic infections, including cirrhosis, hepatocellular, and carcinoma liver failure. There is an urgent need to develop novel, safe, and effective drug candidates with a novel mechanism of action, improved activity, efficacy, and cure rate. AREAS COVERED:Herein, the authors provide a concise report focusing on a general and cutting-edge overview of the current state of polycyclic pyridone-related anti-HBV agent patents from 2016 to 2018 and some future perspectives. EXPERT OPINION:In medicinal chemistry, high-throughput screening (HTS), hit-to-lead optimization (H2L), bioisosteric replacement, and scaffold hopping approaches are playing a major role in the discovery and development of HBV inhibitors. Developing polycyclic pyridone-related anti-HBV agents that could target host factors has attracted significant interest and attention in recent years.

journal_name

Expert Opin Ther Pat

authors

Wei F,Kang D,Cherukupalli S,Zalloum WA,Zhang T,Liu X,Zhan P

doi

10.1080/13543776.2020.1801641

subject

Has Abstract

pub_date

2020-09-01 00:00:00

pages

715-721

issue

9

eissn

1354-3776

issn

1744-7674

journal_volume

30

pub_type

杂志文章
  • Modulators of Na/K-ATPase: a patent review.

    abstract:INTRODUCTION:Na/K-ATPase is a heterodimeric transmembrane protein that regulates neuronal signaling, ion homeostasis, muscle contraction and substrate transportation. Modulators of Na/K-ATPase inhibit Na(+)/K(+) exchange and increase cytosolic Ca(2+) to induce inotropic activity in heart failure patients. Besides produ...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2012.690033

    authors: Wang HY,O'Doherty GA

    更新日期:2012-06-01 00:00:00

  • Advances in hepatitis C virus vaccines, Part one: Advances in basic knowledge for hepatitis C virus vaccine design.

    abstract:INTRODUCTION:Around 3% of the world population is infected with HCV, with 3 - 4 million newly infected subjects added to this reservoir every year. At least 10% of these people will develop liver cirrhosis or cancer over time, while no approved vaccine against HCV infection is available to date. AREAS COVERED:This pap...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2011.630662

    authors: Roohvand F,Kossari N

    更新日期:2011-12-01 00:00:00

  • Phosphodiesterase 10 (PDE10) inhibitors: an updated patent review (2014-present).

    abstract::Introduction: Phosphodiesterase 10 (PDE10) is one of at least 11 different PDE families, which are the enzymes that degrade adenosine 3',5'-cyclic monophosphate (cAMP) and/or guanosine 3',5'-cyclic monophosphate (cGMP) by hydrolyzing the phosphodiester bonds. Inhibition of PDE10A represents a molecular target in the t...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1080/13543776.2020.1709444

    authors: Zagórska A

    更新日期:2020-02-01 00:00:00

  • Formyl peptide receptor modulators: a patent review and potential applications for inflammatory diseases (2012-2015).

    abstract:INTRODUCTION:The activation of leukocytes and the subsequent immune cascade play an essential role in sterile and infectious inflammation. Dysregulation of these immune responses or excess leukocyte activation can induce tissue damage, organ dysfunction and mortality. Formyl peptide receptors (FPRs) are functionally di...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1080/13543776.2016.1216546

    authors: Tsai YF,Yang SC,Hwang TL

    更新日期:2016-10-01 00:00:00

  • 3-Hydroxy-3-methylglutaryl-coenzyme A reductase modulator: toward age- and sex-personalized medicine.

    abstract::Cholesterol homeostasis maintenance is regulated by a cellular feedback system that senses cholesterol amount in cellular membranes. 3-hydroxy 3-methylglutaryl coenzyme A reductase (HMGR) plays a pivotal role in cholesterol metabolism as it is the key rate-limiting enzyme of its biosynthetic pathway; its inhibition pr...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1517/13543776.2015.1061996

    authors: Pallottini V

    更新日期:2015-01-01 00:00:00

  • Teva Pharmaceuticals v. Sandoz: availability of generic glatiramer acetate and the impact to patent litigation claim construction.

    abstract::In the upcoming case of Teva Pharmaceuticals v. Sandoz, the U.S. Supreme Court will address how much deference the appellate court should afford to a trial court's claim construction ruling. The effect of this decision will be far-reaching, as how claims are construed can determine whether a patent is infringed or not...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 社论

    doi:10.1517/13543776.2014.977866

    authors: Fogel LE,Ray CJ

    更新日期:2015-01-01 00:00:00

  • 5-Lipoxygenase inhibitors: a review of recent developments and patents.

    abstract:IMPORTANCE TO THE FIELD:Leukotrienes (LTs) are pivotal lipid mediators of inflammation and allergy and results from recent studies also suggest roles of LTs in cardiovascular diseases, cancer and osteoporosis. 5-Lipoxygenase (5-LO) catalyzes the first step in the biosynthesis of LTs from arachidonic acid, and based on ...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543771003602012

    authors: Pergola C,Werz O

    更新日期:2010-03-01 00:00:00

  • Inhibitors of melanogenesis: a patent review (2009 - 2014).

    abstract:INTRODUCTION:Melanogenesis is the process of producing the melanin pigment, in which a series of chemical and enzymatic pathways are involved. Modulation at any level of this process would become an important approach in the treatment of hyper- or hypopigmentation-related diseases. Since hyperpigmentation covers import...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2015.1039985

    authors: Pillaiyar T,Manickam M,Jung SH

    更新日期:2015-07-01 00:00:00

  • Transport molecules using reverse sequence HIV-Tat polypeptides: not just any old Tat? (WO200808225).

    abstract:BACKGROUND:Many polycationic cell penetrating peptides (CPPs), alternatively named protein transduction domains, have been used for the efficient intracellular delivery of biologically active agents. Patent WO2008/082885 relates to the properties and proposed biomedical applications of a CPP and putative-related sequen...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/17530050902824829

    authors: Howl J,Jones S

    更新日期:2009-09-01 00:00:00

  • Exendins and exendin analogs for diabetic therapy: a patent review (2012-2015).

    abstract:INTRODUCTION:Since exendin-4 (exenatide) was approved for diabetes therapy in 2005, several exendin analogs have been developed for the treatment of type 2 diabetes mellitus. As exenatide is a relatively short-acting injectable agent, major approaches have focused on developing long-acting exendin analogs to improve pa...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1080/13543776.2016.1192130

    authors: Park EJ,Lim SM,Lee KC,Na DH

    更新日期:2016-07-01 00:00:00

  • Cancer immunotherapy using anti-TIM3/PD-1 bispecific antibody: a patent evaluation of EP3356411A1.

    abstract::Introduction: TIM3 and PD-1 are checkpoint inhibitors in cancer that coordinate the downregulation of the proliferation of antigen-specific lymphocytes. There is a great need to discover and develop new therapies focused on inhibiting the action of TIM3 and PD-1 and consequently improving the immune response in the va...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1080/13543776.2019.1637422

    authors: Herrera-Camacho I,Anaya-Ruiz M,Perez-Santos M,Millán-Pérez Peña L,Bandala C,Landeta G

    更新日期:2019-08-01 00:00:00

  • Novel HIV-1 non-nucleoside reverse transcriptase inhibitors: a patent review (2005 - 2010).

    abstract:INTRODUCTION:Non-nucleoside reverse transcriptase inhibitors (NNRTIs) form the backbone of antiretroviral treatment for many HIV-infected individuals. The unique antiviral activity, high specificity and low toxicity associated with this class of agents make them a frequent choice for first-line therapy. However, the ef...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2011.568481

    authors: Zhan P,Liu X

    更新日期:2011-05-01 00:00:00

  • Signal transducer and activator of transcription 3 inhibitors: a patent review.

    abstract:IMPORTANCE OF THE FIELD:Aberrant activation of signal transducer and activator of transcription (Stat) 3, a member of the STAT family of proteins, is prevalent in numerous human cancers and is now widely recognized as a critical molecular abnormality and a master regulator of tumor processes. Thus, the identification o...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2011.539205

    authors: Page BD,Ball DP,Gunning PT

    更新日期:2011-01-01 00:00:00

  • Tropomyosin receptor kinase inhibitors: an updated patent review for 2010-2016 - Part I.

    abstract:INTRODUCTION:Tropomyosin receptor kinases (TrkA/B/C) play crucial roles in the development and maintenance of the nervous system, and aberrant expression of Trk has been implicated in neurological disorders as well as neural and non-neural neoplasms. Patent activity encompassing Trk inhibitors has grown substantially o...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1080/13543776.2017.1297796

    authors: Bailey JJ,Schirrmacher R,Farrell K,Bernard-Gauthier V

    更新日期:2017-06-01 00:00:00

  • Retinoid X receptor ligands: a patent review (2007 - 2013).

    abstract:INTRODUCTION:Retinoid X receptors (RXRs) are nuclear receptors that act as ligand-dependent transcription factors. RXRs function as homodimers or as heterodimers with other nuclear receptors, such as retinoic acid receptors, PPARs, liver X receptors, farnesoid X receptor, vitamin D receptor or thyroid hormone receptors...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2014.880692

    authors: Yamada S,Kakuta H

    更新日期:2014-04-01 00:00:00

  • Long-acting muscarinic M3 receptor antagonists.

    abstract::A series of 10 closely related patent applications define Theravance's approach to the development of long-acting M(3) selective antagonists for the treatment of chronic obstructive pulmonary disease. The applications illustrate a modular approach to the design of such agents, comprising a muscarinic pharmacophore att...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1517/13543776.16.9.1321

    authors: Norman P

    更新日期:2006-09-01 00:00:00

  • A patent review on the development of human cytochrome P450 inhibitors.

    abstract:INTRODUCTION:CYP, a ubiquitous superfamily of enzymes expressed in major organs in humans, plays a key role in biosynthesis of steroids and metabolism of xenobiotics. Inhibitors of these vital enzymes provide, as tools, the opportunity to gain an insight to their role in a myriad of bioactivity and to intervene as ther...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2014.899583

    authors: Francis S,Delgoda R

    更新日期:2014-06-01 00:00:00

  • Growth hormone secretagogue receptor antagonists.

    abstract::The patent claims peptidic/nonpeptidic inhibitors of the ghrelin receptor, the growth hormone secretagogue receptor (GHSR) 1A. Among these compounds, it was disclosed that the addition in some compounds of a GlyMetAla tripeptide at the N-terminus of the ghrelin peptide agonists converts them into ghrelin receptor anta...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1517/13543776.2012.684946

    authors: Costantino L

    更新日期:2012-06-01 00:00:00

  • Fibronectin-based scaffold domain proteins that bind myostatin: a patent evaluation of WO2014043344.

    abstract::Muscular dystrophies (MD) are commonly characterized by progressive loss of muscle mass and function. It is hypothesized that therapeutic blockade of the TGF-β ligand myostatin, a negative regulator of muscle mass, will stimulate muscle growth and restore muscle function. Although many anti-myostatin targets are curre...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1517/13543776.2015.1007954

    authors: Walker RG,Thompson TB

    更新日期:2015-05-01 00:00:00

  • Discovery and development of heat shock protein 90 inhibitors as anticancer agents: a review of patented potent geldanamycin derivatives.

    abstract:INTRODUCTION:There has been research on anticancer strategies which focus on disrupting a single malignant protein. One of the strategies is the inhibition of one protein, heat shock protein 90 (Hsp90). There are many reasons why Hsp90 protein is targeted by anticancer agents: maintenance of cellular homeostasis in org...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2013.780597

    authors: Kim T,Keum G,Pae AN

    更新日期:2013-08-01 00:00:00

  • Pharmaceutical agents for treatment of leishmaniasis: a patent landscape.

    abstract:INTRODUCTION:Leishmaniasis is a neglected tropical disease caused by protozoa of the genus Leishmania. Worldwide, approximately 1.5-2 million new cases of leishmaniasis and 20,000-30,000 deaths occurs each year. Effective treatment for all forms of leishmaniasis have numerous adverse effects contributing to poor adhere...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1080/13543776.2020.1789100

    authors: Barbosa Gomes de Carvalho YM,Shanmugam S,Batista MS,Serafini MR,Araújo AAS,Quintans Júnior LJ

    更新日期:2020-08-01 00:00:00

  • Acylhydrazone derivatives: a patent review.

    abstract:INTRODUCTION:The N-acylhydrazone (NAH) moiety has been characterized as a privileged structure, capable of providing ligands points for more than one type of bioreceptor. Modifications of the subunits bonded to its acyl and imine functions resulted in several derivatives, which modulate a great diversity of molecular t...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2014.959491

    authors: Maia Rdo C,Tesch R,Fraga CA

    更新日期:2014-11-01 00:00:00

  • Caffeic acid derivatives, analogs and applications: a patent review (2009-2013).

    abstract:INTRODUCTION:Caffeic acid (CA) is broadly distributed in several species of the plant kingdom and is widely consumed in human diet. CA and derivatives have been extensively studied in the past years, which unveiled a broad spectrum of biological activities and potential therapeutic applications. As a result, there has ...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2014.959492

    authors: Silva T,Oliveira C,Borges F

    更新日期:2014-11-01 00:00:00

  • A novel DP2 receptor antagonist (AM-461): a patent evaluation of WO2011085033.

    abstract::This application claims salts and crystalline forms of a previously disclosed DP2 receptor antagonist (2-[3-[2-(tert-butylsulfanylmethyl)-4-(2,2-dimethylpropanoylamino)phenoxy]-4-methoxy-phenyl]acetic acid (1)). It also claims compositions containing the free acid and its salts, especially the sodium salt and their us...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2011.636738

    authors: Norman P

    更新日期:2011-12-01 00:00:00

  • Apoptosis-inducing agents: a patent review (2010 - 2013).

    abstract:INTRODUCTION:Apoptosis is an important and extensively studied pathway of programmed cell death, which is central to different physiological processes. Varied pathological implications, not limited to cancer and neurodegenerative diseases, occur if a slight dysfunction happens in the intricate apoptotic pathway. Theref...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2014.877445

    authors: Kamal A,Faazil S,Malik MS

    更新日期:2014-03-01 00:00:00

  • Amino acid deprivation using enzymes as a targeted therapy for cancer and viral infections.

    abstract:INTRODUCTION:Amino acid depletion in the blood serum is currently being exploited and explored for therapies in tumors or viral infections that are auxotrophic for a certain amino acid or have a metabolic defect and cannot produce it. The success of these treatments is because normal cells remain unaltered since they a...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1080/13543776.2017.1254194

    authors: Fernandes HS,Silva Teixeira CS,Fernandes PA,Ramos MJ,Cerqueira NM

    更新日期:2017-03-01 00:00:00

  • New β-glucan inhibitors as antifungal drugs.

    abstract:INTRODUCTION:New classes of synthetic and semi-synthetic β-glucan inhibitors have recently emerged, providing analogs that, in some cases, have been proven to have a high degree of activity against fungi, offering the prospect of alternatives to the commercially available lipopeptide/echinocandin agents caspofungin, mi...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2011.603899

    authors: Hector RF,Bierer DE

    更新日期:2011-10-01 00:00:00

  • Pyrimido[4,5-b]indole derivatives and use thereof in the expansion of hematopoietic stem cells US2015011543 (a1): a patent evaluation.

    abstract:INTRODUCTION:There is an unmet need of strategies for ex-vivo expansion of hematopoetic stem cells (HSCs) without loss of their primitive nature or stemness. We evaluate here a patent that attempts to address this need via key small molecules 1 and 40 that possess a pyrimido[4,5-b]indole core. Areas covered: (i) Discus...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1080/13543776.2017.1360281

    authors: Agarwal S,Agarwal H,Zaware N

    更新日期:2017-11-01 00:00:00

  • Drugs for dengue: a patent review (2010-2014).

    abstract:INTRODUCTION:Almost half the global population is estimated to be at risk of contracting dengue infection. Of the 400 million infections estimated to occur annually, 4 million can be potentially life-threatening leading to vascular leakage and shock. The only treatment available to severe dengue patients is fluid repla...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章,评审

    doi:10.1517/13543776.2014.967212

    authors: Beesetti H,Khanna N,Swaminathan S

    更新日期:2014-11-01 00:00:00

  • Thrombin receptor (PAR-1) antagonists as novel antithrombotic agents.

    abstract::In addition to its central role in haemostasis and wound healing, thrombin activates platelets and smooth muscle cells by proteolytic activation of cell surface protease-activated receptor-1 (PAR-1), which is also known as the thrombin receptor. Thrombin is the most potent activator of human platelets and, as such, a ...

    journal_title:Expert opinion on therapeutic patents

    pub_type: 杂志文章

    doi:10.1517/13543776.16.4.493

    authors: Chackalamannil S,Xia Y

    更新日期:2006-04-01 00:00:00