K. Nagasawa

Guanidinium Hypoiodite-Catalyzed Intramolecular Oxidative Coupling Reaction of Oxindoles with β-Dicarbonyls.
20234 citationsauthor #8
Exploring Guanidinium Organocatalysts for Hypoiodite‐Mediated Reactions
20235 citationsauthor #2
Regulation of thrombin activity by ligand-induced topological alteration in a thrombin-binding aptamer.
20230 citationsauthor #6
Enantioselective Oxidative Enolate Coupling of Oxindoles Catalyzed by Chiral Guanidinium Hypoiodite
20234 citationsauthor #4
Stereoselective Construction of Tertiary Alcohol at C11 of Zetekitoxin AB
20231 citationsauthor #8
Synthesis of Pentacyclic Core Structure of Aspidosperma Alkaloids by Sequential Ring Construction Via Oxidative Phenolic Coupling
20232 citationsauthor #3
A 1,3-boron shift reaction of homoallenylboronates to synthesise 2-boryl-1,3-dienes.
20230 citationsauthor #4
Approaches to Construction of the Medium-Sized Ring Structure in Zetekitoxin AB by Ring-Closing Metathesis.
20231 citationsauthor #7
Chiral Hypoiodite Salt Catalysts for Enantioselective Oxidative Transformations
20234 citationsauthor #2
Differential Metabolic Stability of 4α,25- and 4β,25-Dihydroxyvitamin D3 and Identification of Their Metabolites
20233 citationsauthor #10
Stereodivergent Synthesis of 1,3-Dienes via Protodeboronation of Homoallenylboronic Esters.
20221 citationsauthor #5
Single-molecule displacement assay reveals strong binding of polyvalent dendrimer ligands to telomeric G-quadruplex.
20224 citationsauthor #7
Nontoxic Enantiomeric Reference Materials for Saxitoxins.
20226 citationsauthor #12
Effects of G-Quadruplex Ligands on the Topology, Stability, and Immunostimulatory Properties of G-Quadruplex-Based CpG Oligodeoxynucleotides.
20226 citationsauthor #7
Destabilization of DNA and RNA G-quadruplex structures formed by GGA repeat due to N6-methyladenine modification.
20228 citationsauthor #4
Total Synthesis of Fused Polycyclic Alkaloids Based on Oxidative Phenolic Couplings and Aza-Michael Reactions
20222 citationsauthor #2
Synthesis of C2-Alkoxy-Substituted 19-Nor Vitamin D3 Derivatives: Stereoselectivity and Biological Activity
20222 citationsauthor #8
Synthesis of Deuterium-Labeled Vitamin D Metabolites as Internal Standards for LC-MS Analysis
20225 citationsauthor #11
Chemical targeting of G-quadruplexes in telomeres and beyond for molecular cancer therapeutics
202117 citationsauthor #2
Enantioselective Total Synthesis of Cepharatines via Bioinspired Ring Reconstruction.
20214 citationsauthor #3
Mechanistic insights into entropy-driven 1,2-type Friedel-Crafts reaction with conformationally flexible guanidine-bisthiourea bifunctional organocatalysts
20216 citationsauthor #9
Discovery of a Vitamin D Receptor-Silent Vitamin D Derivative That Impairs Sterol Regulatory Element-Binding Protein In Vivo.
202125 citationsauthor #11
Recent Advances in Synthetic Strategies for the C4a,C9a-Fused Tetracyclic Hydrocarbazole Core Structure of Minfiensine and Related Akuammiline Alkaloids
20211 citationsauthor #1
Vinylnaphthalene-bearing hexaoxazole as a fluorescence turn-on type G-quadruplex ligand.
20213 citationsauthor #7
Differential diagnosis of vitamin D–related hypercalcemia using serum vitamin D metabolite profiling
202134 citationsauthor #11
Stabilization of telomeric G-quadruplex by ligand binding increases susceptibility to S1 nuclease.
20214 citationsauthor #5
Two new skeletal analogues of saxitoxin found in the scallop, Patinopecten yessoensis, as possible metabolites of paralytic shellfish toxins.
202110 citationsauthor #6
Enantioselective Total Synthesis of (+)-Stephadiamine through Bioinspired Aza-Benzilic Acid Type Rearrangement.
202115 citationsauthor #4
Detection of CpG Methylation in G-Quadruplex Forming Sequences Using G-Quadruplex Ligands
20215 citationsauthor #5
Controlled lipid β-oxidation and carnitine biosynthesis by a vitamin D metabolite.
202120 citationsauthor #19
Total Synthesis of Saxitoxins
20210 citationsauthor #1
Chemical Synthesis of Side‐Chain‐Hydroxylated Vitamin D3 Derivatives and Their Metabolism by CYP27B1
20216 citationsauthor #8
Selective alkylation of parallel G-quadruplex structure.
20212 citationsauthor #9
Synthesis of Hydrocarbazole Derivatives by Oxidative Dearomative Cyclization of Diarylamines using a Hypervalent Iodine Reagent.
20203 citationsauthor #4
Enantioselective Epoxidation of 2,3-Disubstituted Naphthoquinones by a Side Chain Truncated Guanidine-Urea Bifunctional Organocatalyst.
20205 citationsauthor #7
Isolation, Structure Determination, and Synthesis of Cyclic Tetraglutamic Acids from Box Jellyfish Species Alatina alata and Chironex yamaguchii
20208 citationsauthor #7
A new skull of an early diverging rorqual (Balaenopteridae, Mysticeti, Cetacea) from the late Miocene to early Pliocene of Yamagata, northeastern Japan
20201 citationsauthor #2
Synthesis of Spiroguanidine Derivatives by Dearomative Oxidative Cyclization using Hypervalent Iodine Reagent
202012 citationsauthor #5
Topologies of G-quadruplex: Biological functions and regulation by ligands.
202087 citationsauthor #3
Linear consecutive hexaoxazoles as G4 ligands inducing chair-type anti-parallel topology of a telomeric G-quadruplex
20204 citationsauthor #8
Synthesis of Paralytic Shellfish Toxins: Saxitoxins
20200 citationsauthor #2
Target identification of a macrocyclic hexaoxazole G-quadruplex ligand using post-target-binding visualization.
20208 citationsauthor #9
Stereoselective Synthesis of Four Calcitriol Lactone Diastereomers at C23 and C25.
201912 citationsauthor #8
Synthesis of All Stereoisomers of RK460 and Evaluation of Their Activity and Selectivity as Abscisic Acid Receptor Antagonists.
20194 citationsauthor #5
Recent Advances in Natural Products Synthesis Using Bifunctional Organocatalysts Bearing a Hydrogen‐Bonding Donor Moiety
201917 citationsauthor #2
Converting FRET Signal into Force Information using Short Looped DNA as Force Transducer
20190 citationsauthor #7
Rif1 promotes association of G-quadruplex (G4) by its specific G4 binding and oligomerization activities
201924 citationsauthor #8
Synthesis of C12-keto saxitoxin derivatives with unusual inhibitory activity against voltage-gated sodium channels.
20198 citationsauthor #14
Synthetic Chemical Probes That Dissect Vitamin D Activities.
201911 citationsauthor #12
Model studies for isolation of G-quadruplex-forming DNA sequences through a pull-down strategy with macrocyclic polyoxazole.
20193 citationsauthor #9
Introduction of Fluorine Atoms to Vitamin D3 Side-chain and Synthesis of 24,24-Difluoro-25-hydroxyvitamin D3.
201910 citationsauthor #4
Identification of Target Protein for Batzelladines as CD4
20190 citationsauthor #1
Impact of Small Molecules on Intermolecular G-Quadruplex Formation
20192 citationsauthor #5
Synthetic Approaches to Zetekitoxin AB, a Potent Voltage-Gated Sodium Channel Inhibitor
20197 citationsauthor #4
Quantifying the impact of small molecule ligands on G-quadruplex stability against Bloom helicase
201917 citationsauthor #6
Synthesis of Isoxazolidines by Intramolecular Hydroamination of N-Alkoxyamides in the Presence of a Visible-Light Photoredox Catalyst
20195 citationsauthor #4
Synthesis and Telomeric G-Quadruplex-Stabilizing Ability of Macrocyclic Hexaoxazoles Bearing Three Side Chains
201912 citationsauthor #7
Random Formation of G-Quadruplexes in the Full-Length Human Telomere Overhangs Leads to a Kinetic Folding Pattern with Targetable Vacant G-Tracts.
201835 citationsauthor #7
Binding of a Telomestatin Derivative Changes the Mechanical Anisotropy of a Human Telomeric G-Quadruplex.
201814 citationsauthor #8
Abstract 4839: Targeting glioma stem cells by pharmacologic stabilization of G-quadruplexes
20181 citationsauthor #8
Development of G-quadruplex ligands for selective induction of a parallel-type topology.
20189 citationsauthor #9
Design of the Chiral Environment for Asymmetric Acid-Base Catalysis
20181 citationsauthor #2
Total Synthesis of (+)-Gracilamine Based on an Oxidative Phenolic Coupling Reaction and Determination of Its Absolute Configuration.
201827 citationsauthor #3
Analysis of Interactions between Telomeric i‐Motif DNA and a Cyclic Tetraoxazole Compound
201813 citationsauthor #9
Synthesis of a Quaternary N,N′‐Aminal‐Containing A–E Ring System of Palau′amine via an Enamide‐Type Overman Rearrangement Reaction
20184 citationsauthor #3
Synthesis of 2,6,7-Trisubstituted Prenylated indole.
20187 citationsauthor #5
A force sensor that converts fluorescence signal into force measurement utilizing short looped DNA.
20187 citationsauthor #7
Molecular architecture of G-quadruplex structures generated on duplex Rif1-binding sequences
201813 citationsauthor #7
Esterification of PQQ Enhances Blood-Brain Barrier Permeability and Inhibitory Activity against Amyloidogenic Protein Fibril Formation.
201812 citationsauthor #8
Asymmetric Epoxidation of 1,4-Naphthoquinones Catalyzed by Guanidine-Urea Bifunctional Organocatalyst.
201812 citationsauthor #7
i-Motif-Binding Ligands and Their Effects on the Structure and Biological Functions of i-Motif.
201839 citationsauthor #2
Identification of G-quadruplex clusters by high-throughput sequencing of whole-genome amplified products with a G-quadruplex ligand
201832 citationsauthor #10
Synthetic studies of (23S,25R)-1α,25-dihydroxyvitamin D3 26,23-lactone (calcitriol lactone) and its derivatives.
20176 citationsauthor #4
Targeting glioma stem cells in vivo by a G-quadruplex-stabilizing synthetic macrocyclic hexaoxazole
20170 citationsauthor #10
A-Ring Synthons of 19-Nor Type Vitamin D Derivatives.
20173 citationsauthor #3
Structure-Dependent Binding of hnRNPA1 to Telomere RNA.
201751 citationsauthor #7
TOTAL SYNTHESIS OF (+)-LINOXEPIN
20171 citationsauthor #1
Novel Chiral Derivatizing Agents for 1H NMR Determination of Enantiomeric Purities of Carboxylic Acids
20170 citationsauthor #3
Targeting STUB 1-tissue factor axis normalizes the hyperthrombotic uremic phenotype without increasing the bleeding risk
20175 citationsauthor #11
FAN1 interaction with ubiquitylated PCNA alleviates replication stress and preserves genomic integrity independently of BRCA2
201738 citationsauthor #8
Identification of G-quadruplex structures that possess transcriptional regulating functions in the Dele and Cdc6 CpG islands
201718 citationsauthor #6
Guanidinium Hydroiodide/Cumene Hydroperoxide-Mediated Intermolecular Oxidative Coupling Reaction of β–Ketoamides with Oxindoles
20178 citationsauthor #4
Targeting STUB1–tissue factor axis normalizes hyperthrombotic uremic phenotype without increasing bleeding risk
201746 citationsauthor #11
Vitamin D Metabolite, 25-Hydroxyvitamin D, Regulates Lipid Metabolism by Inducing Degradation of SREBP/SCAP.
2017121 citationsauthor #10
Author Correction: FAN1 interaction with ubiquitylated PCNA alleviates replication stress and preserves genomic integrity independently of BRCA2
20175 citationsauthor #8
Total Synthesis of Pyrrole-Imidazole Alkaloid (+)-Cylindradine B.
201719 citationsauthor #5
Adaptive and Specific Recognition of Telomeric G-Quadruplexes via Polyvalency Induced Unstacking of Binding Units.
201743 citationsauthor #6
Guanidine organocatalysis for enantioselective carbon-heteroatom bond-forming reactions
201722 citationsauthor #3
Total Synthesis of Rishirilide B by Organocatalytic Oxidative Kinetic Resolution: Revision of Absolute Configuration of (+)-Rishirilide B.
201719 citationsauthor #5
Synthesis and Identification of Key Biosynthetic Intermediates for the Formation of the Tricyclic Skeleton of Saxitoxin.
201725 citationsauthor #5
Targeting glioma stem cells in vivo by a G-quadruplex-stabilizing synthetic macrocyclic hexaoxazole
201745 citationsauthor #10
Oxidative Kinetic Resolution of cis-Fused Tricyclic 1-Tetralone Derivatives by Guanidine–Bisurea Bifunctional Organocatalyst
20174 citationsauthor #4
Detection of DNA Methylation of G-Quadruplex and i-Motif-Forming Sequences by Measuring the Initial Elongation Efficiency of Polymerase Chain Reaction.
201634 citationsauthor #6
Total Synthesis of 11-Saxitoxinethanoic Acid and Evaluation of its Inhibitory Activity on Voltage-Gated Sodium Channels.
201616 citationsauthor #6
Potential roles of G-quadruplex structures in regulation of DNA replication
20160 citationsauthor #14
Analysis of thermal stability of methylated VEGF-A G-quadruplex structure
20160 citationsauthor #2
Rif1 regulates DNA replication through binding to G-quadruplex structures
20160 citationsauthor #5
Synthesis of (+)‐trans‐Dihydrolycoricidine by an Organocatalytic Enantioselective Friedel–Crafts Reaction
201611 citationsauthor #4
Synthesis of 24,24-Difluoro-1,3-cis-25-dihydroxy-19-norvitamin D3 Derivatives and Evaluation of Their Vitamin D Receptor-Binding Affinity.
20168 citationsauthor #9
A single molecule study of a fluorescently labeled telomestatin derivative and G-quadruplex interactions
201615 citationsauthor #4

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