Supplemental Observations on Atropisomerism of Fungal Bis(naphtho-γ-pyrone)s
スポンサーリンク
概要
- 論文の詳細を見る
Epimerization reactions of bis(naphtho-γ-pyrone) derivatives, ustilaginoidin A (2) and dihydroisoustilaginoidin A (6), were examined by refluxing the compounds in acetic and in p-xylene. The epimerization occurred in acetic acid but not in p-xylene. From the reaction mixture in the case of dihydroisoustilaginoidin A, the starting material and the epimer at the biaryl linkage, dihydroustilaginoidin A (7), were isolated and characterized. The circular dichroism Cotton effects due to chiral exciton coupling of biaryl compound is discussed.
- 社団法人日本薬学会の論文
- 1990-08-25
著者
関連論文
- The Effects of New Cytochalasins from Phomopsis sp. and the Derivatives on Cellular Structure and Actin Polymerization
- Biosynthesis of Elsinochrome A, the Perylenequinone from Elsinoe spp.I.
- Cycloleonurinin, a Cyclic Peptide from Leonuri Fructus
- Chetracin A and Chaetocins B and C, Three New Epipolythiodioxo-piperazines from Chaetomium spp.
- Prenylated Dibenzoylmethane Derivatives from the Root of Glycyrrhiza inflata (Xinjiang Licorice)
- Mutagenic Principles in Sinomeni Caulis et Rhizoma. II. : The Mutagenicity of Liriodenine in the Basic Fraction of the Methanol Extract
- Triterpenoids of Lanostane Group from Fruit Bodies of Nine Basidiomycetous Species
- Chemical and Cytotoxicity Survey on the Production of Ochratoxins and Penicillic Acid by Aspergillus ochraceus WILHELM
- Biochemical Studies on Quinone Derivatives. II. Effects of Naturally Occurring Benzoquinone Derivatives on the Respiration of Intact Rat Liver Mitochondria.
- Syntheses of 2,5,6,7-Tetramethoxy(hydroxy)-and 2,6,7,8-Tetramethoxy-1,4-naphthoquinone
- Biochemical Studies on Quinone Derivatives. I. Effects of Naturally Occurring Benzoquinone Derivatives on Mitochondrial Preparations
- Anthraquinone Metabolites of Talaromyces avellaneus (THOM et TURRESON) C.R.BENJAMIN and Preussia multispora (SAITO et MINOURA) CAIN
- Gas Chromatography of Triterpenes. I. Ursanane, Oleanane, and Lupane Groups
- Antibacterial Effect of Lichen Substances and Related Compounds. VIII. Some Observations on Inactivation of Antitubercular Activity by Surface Active Agents and Serum.
- Structures of Sesquiterpenes of Curcuma aromatica SALISB. II. : Studies on Minor Sesquiterpenes
- Supplemental Observations on Atropisomerism of Fungal Bis(naphtho-γ-pyrone)s
- Four New Azaphilones from Chaetomium globosum var. flavo-viridae
- A Mutagenic New Iridoid in the Water Extract of Catalpae Fructus
- Biosynthesis of Chaetochromin A, a Bis(naphtho-γ-pyrone), in Chaetomium spp.
- Further Characterization of Seven Bis(naphtho-γ-pyrone) Congeners of Ustilaginoidins, Coloring Matters of Claviceps virens (Ustilaginoidea virens)
- Absolute Configurations of Chaetochromin A and Related Bis(naphtho-γ-pyrone) Mold Metabolites(Organic,Chemical)
- THREE NEW 10-PHENYL-[11]CYTOCHALASANS, CYTOCHALASINS N, O, AND P FROM PHOMOPSIS SP(Communications to the Editor)
- Chaetochromins B, C and D, Bis(naphtho-γ-pyrone) Derivatives from Chaetomium gracile(Organic,Chemical)
- Rhodoquinone-9 from the Muscle of Ascaris lumbricoides var. suis
- Hydroxybenzoquinones from Myrsinaceae Plants. III. The Structures of 2-Hydroxy-5-methoxy-3-pentadecenylbenzoquinone and Ardisiaquinones A, B and C from Ardisia spp.
- Hydroxybenzoquinones from Myrsinaceae Plants. I. Reconfirmation of the Structure of Maesaquinoes and Isolation of Acetylmaesaquinone from Maesa japonica MORITZI
- Triterpenoids of Echinodontium tsugicola
- Triterpenoids of Hoelen (fuling), Sclerotia of Poria cocos WOLF. II. 3β-Hydroxylanosta-7,9 (11), 24-trien-21-oic Acid