Výsledky vyhledávání - "Teppei Kumemura"

Novel synthesis of the 2-azaanthraquinone alkaloid, scorpinone, based on two microwave-assisted pericyclic reactions

Autor: Satoshi Hibino, Junko Nobuhiro, Tominari Choshi, Teppei Kumemura

Publikováno v: Tetrahedron Letters. 49:3725-3728

The total synthesis of the 2-azaanthraquinone alkaloid, scorpinone (4), isolated from the mycelium of a Bispora-like tropical fungus, has been completed in nine steps. The two key steps involve a microwave-assisted thermal electrocyclic reaction for

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9473e700b83180173af56e30a241ce82
https://doi.org/10.1016/j.tetlet.2008.04.033

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ChemInform Abstract: Novel Synthesis of the 2-Azaanthraquinone Alkaloid, Scorpinone, Based on Two Microwave-Assisted Pericyclic Reactions

Autor: Satoshi Hibino, Teppei Kumemura, Tominari Choshi, Junko Nobuhiro

Publikováno v: ChemInform. 39

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4816a9be31be3d7a7582cbdfaf612586
https://doi.org/10.1002/chin.200838207

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Synthesis of the new furo[3,2-h]isoquinoline alkaloid, TMC-120B from Aspergillus ustus

Autor: Tominari Choshi, Mitsuko Sera, Yohhei Takahashi, Satoshi Hibino, Aki Hirata, Teppei Kumemura, Junko Nobuhiro

Publikováno v: Chemicalpharmaceutical bulletin. 53(4)

A total synthesis of a new furo[3,2-h]isoquinoline alkaloid TMC120-B (2), isolated from Aspergillus ustus together with two related compounds, has been completed in sixteen steps. The key step is the synthesis of the appropriate 3,7,8-trisubstituted

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b0b35f7eb269514bc87cc86148fb0f9
https://pubmed.ncbi.nlm.nih.gov/15802838

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Syntheses of the Antibiotic Alkaloids Renierone, Mimocin, Renierol, Renierol Acetate, Renierol Propionate, and 7-Methoxy-1,6-dimethylisoquinoline-5,8-dione

Autor: Tominari Choshi, Noriko Hiramatsu, Nagako Kuwabara, Hiroyuki Hayashi, Teppei Kumemura, Satoshi Hibino, Junko Nobuhiro

Publikováno v: ChemInform. 35

The total synthesis of renierone, mimocin, renierol, renierol acetate, renierol propionate, and 7-methoxy-1,6-dimethylisoquinoline-5,8-dione was successfully achieved by the regioselective oxidation of 5-oxygenated isoquinoline. The synthetic method

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ccd7bd17de5366094e9c3166c805134e
https://doi.org/10.1002/chin.200428206

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A Highly Efficient Synthesis of Trispheridine through a Construction of Tetrahydrophenanthridine Based on a Microwave-assisted Thermal Electrocyclic Reaction of an Aza 6π-Electron System

Autor: Satoshi Hibino, Tominari Choshi, Junko Nobuhiro, Junko Yukawa, Teppei Kumemura, Aya Hirose

Publikováno v: HETEROCYCLES. 66:87

A highly efficient synthesis of a phenanthridine alkaloid, trispheridine (1) has been achieved in a 74% overall yield in a four-step sequence. The key step is the construction of a tetrahydrophenanthridine based on a microwave -assisted thermal elect

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be56f377512dfe13dae56126395c18c9
https://doi.org/10.3987/com-05-s(k)30

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Synthesis of 5-Methylindole-4,7-quinone through a New Construction of the Functionalized Indole Ring Based on the Allene-mediated Electrocyclic Reaction Involving the Pyrrole [b]-Bond

Autor: Junko Nobuhiro, Tominari Choshi, Teppei Kumemura, Shigeo Tohyama, Maho Hirayama, Satoshi Hibino

Publikováno v: HETEROCYCLES. 63:1765

A new synthesis of an indole ring based on an electrocyclic reaction of a 2-alkenyl-3-allenylpyrrole intermediate generating from 2-ethenyl-3-propargylpyrrole was established. A synthesis of 5-methylindole-4,7-quinone (1)was completed in seven steps

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::59baaed69dce9844127c0022b43a5e49
https://doi.org/10.3987/com-04-10138

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