Inhibitory Effects of Various Flavonoids Isolated from Leaves of Persimmon on Angiotensin-Converting Enzyme Activity

Kenji Kameda, Takeshi Takaku, Hiromichi Okuda, +5

Journal of Natural Products

HypertensionNutraceutical IngredientVarious FlavonoidsOxidative StressMedicinal Chemistry +14

Effects of interaction of tannins with co-existing substances. VII. Inhibitory effects of tannins and related polyphenols on xanthine oxidase.

Tsutomu Hatano, Taeko Yasuhara, Rieko Yoshihara, +3

Chemical and Pharmaceutical Bulletin

Co-existing SubstancesInhibitory ActivityBiochemistryTanninMedicine +10

Studies on the activities of tannins and related compounds from medicinal plants and drugs. VII. Effects of extracts of leaves of Artemisia species, and caffeic acid and chlorogenic acid on lipid metabolic injury in rats fed peroxidized oil.

Yoshiyuki Kimura, Hiromichi Okuda, Takuo Okuda, +3

Chemical and Pharmaceutical Bulletin

Lipid Metabolic InjuryArtemisia PrincepsBiochemistryTanninMedicine +13

An Efficient and Versatile Method for the Synthesis of Optically Active 2-Oxazolines: An Acid-catalyzed Condensation of Ortho Esters with Amino Alcohols

Kazuyuki Kamata, Isao Agata, A. I. MEYERS

The Journal of Organic Chemistry

Medicinal ChemistryAmino Alcoholskazuyuki KamataEngineeringVersatile MethodOrtho Esters +13

A Novel Entry to Pyrido[4,3-b]carbazoles: An Efficient Synthesis of Ellipticine

Minoru Ishikura, Ayako Hino, Toshikatsu Yaginuma, +2

Tetrahedron

EngineeringHeterocyclicOrganic ChemistryChemistryHeterocycle Chemistry +3

Studies on the activities of tannins and related compounds from medicinal plants and drugs. VI. Inhibitory effects of caffeoylquinic acids on histamine release from rat peritoneal mast cells.

Yoshiyuki Kimura, Hiromichi Okuda, Takuo Okuda, +3

Chemical and Pharmaceutical Bulletin

Medicinal ChemistryAllergyTanninMedicinePhysiology +12

Oxidative Rearrangements of Pentacyclic Triterpenes. A Method for the Synthesis of Certain Naturally Occurring Triterpenes from α- and β-Amyrin¹

Isao Agata, E. J. Corey, Alfred G. Hortmann, +3

The Journal of Organic Chemistry

Oxidative RearrangementsEngineeringA MethodAltmetric Attention ScoreE. J. Corey +9

Melitric Acids A and B, New Trimeric Caffeic Acid Derivatives from Melissa officinalis.

Isao Agata, Hijiri KUSAKABE, Tsutomu Hatano, +2

Chemical and Pharmaceutical Bulletin

Food ChemistryNew Polyphenolic CompoundsBotanyMedicineRosmarinic Acid +9

1,3,5-Tri-O-caffeoylquinic acid from Xanthium strumarium

Isao Agata, Saori Goto, Tsutomu Hatano, +2

Phytochemistry

Medicinal Chemistry1,3,5-Tri-o-caffeoylquinic AcidBioorganic ChemistryBiochemistryNatural Sciences +4

A tetrameric derivative of caffeic acid from Rabdosia japonica

Isao Agata, Tsutomu Hatano, Sansei Nishibe, +1

Phytochemistry

Food ChemistryTetrameric DerivativeBiosynthesisBioorganic ChemistryBiochemistry +5