Search Results - "Saikawa, Yoko"
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Identification of a cyanidin-3-O-β-galactoside in gall tissue induced by midges on Japanese beech (Fagus crenata Blume)
Published in Bioscience, biotechnology, and biochemistry (02-04-2020)“…Insect gall structures have many characteristic forms and colors, which are distinguishable from host plants. In this study, we identified an anthocyanin from…”
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2
Identification of Cyclopropylacetyl-(R)-carnitine, a Unique Chemical Marker of the Fatally Toxic Mushroom Russula subnigricans
Published in Chemical & pharmaceutical bulletin (2016)“…A toxic mushroom, Russula subnigricans, causes fatal poisoning by mistaken ingestion. In spite of the potent bioactivity, the responsible toxin had not been…”
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3
Smooth Isoindolinone Formation from Isopropyl Carbamates via Bischler–Napieralski-Type Cyclization
Published in Organic letters (17-01-2014)“…Isopropyl carbamates derived from benzylamines provide isoindolinones by treatment with phosphorus pentoxide at room temperature. Utility of this…”
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4
Histological and quantitative image analyses of rice gall formed by orange leafhopper Cicadulina bipunctata (Hemiptera: Cicadellidae)
Published in Applied entomology and zoology (01-08-2021)“…The orange leafhopper, Cicadulina bipunctata (Melichar) (Hemiptera: Cicadellidae), is an insect pest of various Poaceae plants. Feeding by this leafhopper…”
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5
Refined Structure of Hipposudoric and Norhipposudoric Acids, Pigments of the Red Sweat of the Hippopotamus
Published in Chemistry letters (05-12-2015)“…The tautomeric structures of hipposudoric and norhipposudoric acids were investigated using a computational method. The results indicated that the most…”
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6
Identification of the toxic trigger in mushroom poisoning
Published in Nature chemical biology (01-07-2009)“…We have isolated the small, highly strained carboxylic acid cycloprop-2-ene carboxylic acid from the Asian toxic mushroom Russula subnigricans. This compound…”
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7
Characterization of Plasmodium falciparum Pantothenate Kinase and Identification of Its Inhibitors From Natural Products
Published in Frontiers in cellular and infection microbiology (09-03-2021)“…Coenzyme A (CoA) is a well-known cofactor that plays an essential role in many metabolic reactions in all organisms. In , the most deadly among species that…”
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Orange Leafhopper Cicadulina bipunctata Feeding Induces Gall Formation Nitrogen Dependently and Regulates Gibberellin Signaling
Published in Plants (Basel) (26-09-2020)“…Orange leafhopper feeding induces wallaby ear symptoms, namely growth suppression and gall formation characterized by severe swelling of leaf veins, on various…”
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Synthetic Studies on Polymaxenolides: Synthesis and Structure Elucidation of Nominal Epoxyafricanane and Other Africane-Type Sesquiterpenoids
Published in Journal of organic chemistry (05-08-2011)“…A racemic total synthesis of the sesquiterpenoid unit of the hybrid marine natural product polymaxenolide has been achieved based on a three-component assembly…”
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10
Total synthesis of kendomycin featuring intramolecular Dötz benzannulation
Published in Organic letters (16-04-2010)“…One-step formation of the ansa-skeleton realized the synthesis of kendomycin, an ansa-type quinone methide. The Fischer carbene complex derived from the…”
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11
Synthesis and Properties of Hydrazine‐Embedded Biphenothiazines and Application of Hydrazine‐Embedded Heterocyclic Compounds to Fluorescence Cell Imaging
Published in Asian journal of organic chemistry (01-09-2018)“…Hydrazine‐embedded unsubstituted butterfly‐shaped biphenothiazine and its sulfoxides were synthesized by dimerization of 1,9‐dibromophenothiazine, which was…”
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12
Studies on the red sweat of the Hippopotamus amphibius
Published in Pure and applied chemistry (01-04-2007)“…The secretion from the hippopotamus' skin changes its color from colorless to red, and then brown by polymerization of its pigments. The responsible pigments…”
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13
Application of intramolecular Dötz reaction to the synthesis of ansa-compounds: concise synthesis of arnebinol
Published in Tetrahedron letters (01-01-2007)“…Fischer carbene complexes having long alkynyloxy chains regioselectively produced oxametacyclophanes via the intramolecular Dötz reaction. The utility of this…”
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14
Toxic isolectins from the mushroom Boletus venenatus
Published in Phytochemistry (Oxford) (01-04-2010)“…Ingestion of the mushroom Boletus venenatus causes a gastrointestinal syndrome, such as diarrhea. A family of isolectins ( B. venenatus lectins, BVLs) was…”
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15
Absolute configuration and tautomeric structure of xylindein, a blue–green pigment of Chlorociboria species
Published in Phytochemistry (Oxford) (01-10-2000)“…The S absolute configuration of both chiral centers of xylindein was assigned using X-ray crystallographic heavy atom analysis after its conversion to a…”
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An overview of the total synthesis of africane-type sesquiterpenoids
Published in Tetrahedron letters (20-06-2018)“…[Display omitted] •Africane-type sesquiterpenoids consist of a unique bicyclo[5.3.0]decane structure.•Their unusual seven-membered ring system fascinates many…”
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Biological evaluation for anti-inflammatory effect of africane-type sesquiterpenoids
Published in Bioorganic & medicinal chemistry (15-08-2022)“…[Display omitted] •Africane-type compounds and their synthetic intermediate suppress LPS-induced Cox-2 expression.•Africane-type compounds and their synthetic…”
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18
Small molecules assisting eggshell calcium dissolution for embryonic bone formation
Published in Tetrahedron (31-01-2020)“…Calcium carbonate in avian eggshell is used as a calcium source for bone formation during embryonic development. We studied ostrich eggshells as a…”
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Inositol tetrakisphosphate from chicken eggshell
Published in Tetrahedron (31-01-2020)“…Unlike our previous study that identified D-myo-inositol 4,5-bisphosphate (Ins(4,5)P2, 1) from ostrich eggshell, the compound myo-inositol…”
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Scalable Syntheses and Biological Evaluation of Africane‐Type Sesquiterpenoids
Published in Chemistry & biodiversity (01-03-2022)“…Practical total syntheses of africane‐type sesquiterpenoids were realized by reexamination of a divergent strategy employing optimized three‐component coupling…”
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