Search Results - "Nehira, Tatsuo"

Asaroidoxazines from the Roots of Asarum asaroides Induce Apoptosis in Human Neuroblastoma Cells by Ohta, Shinji, Oshimo, Shiori, Ohta, Emi, Nehira, Tatsuo, Ômura, Hisashi, Uy, Mylene M, Ishihara, Yasuhiro

“…Plants in the family Aristolochiaceae contain phenanthrene skeleton-containing chemical constituents that exhibit nephrotoxic, carcinogenic, mutagenic,…”
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Taichunamides: Prenylated Indole Alkaloids from Aspergillus taichungensis (IBT 19404) by Kagiyama, Ippei, Kato, Hikaru, Nehira, Tatsuo, Frisvad, Jens C., Sherman, David H., Williams, Robert M., Tsukamoto, Sachiko

“…Seven new prenylated indole alkaloids, taichunamides A–G, were isolated from the fungus Aspergillus taichungensis (IBT 19404). Taichunamides A and B contained…”
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Isolation of Three New Diterpenes from Dodonaea viscosa by Sagara, Toshinori, Sugimoto, Sachiko, Yamano, Yoshi, Nehira, Tatsuo, Masuda, Kazuma, Otsuka, Hideaki, Matsunami, Katsuyoshi

“…An investigation into the methanol extracts obtained from the stems of Dodonaea viscosa led to the isolation of one nor-clerodane diterpene (1) and two labdane…”
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Altercrasins A⁻E, Decalin Derivatives, from a Sea-Urchin-Derived Alternaria sp.: Isolation and Structural Analysis Including Stereochemistry by Yamada, Takeshi, Tanaka, Asumi, Nehira, Tatsuo, Nishii, Takumi, Kikuchi, Takashi

“…In order to find out the seeds of antitumor agents, we focused on potential bioactive materials from marine-derived microorganisms. Marine products include a…”
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Assignment of Absolute Configuration of Bromoallenes by Vacuum-Ultraviolet Circular Dichroism (VUVCD) by Umezawa, Taiki, Mizutani, Nakaba, Matsuo, Koichi, Tokunaga, Yuugo, Matsuda, Fuyuhiko, Nehira, Tatsuo

“…A new application of vacuum-ultraviolet circular dichroism (VUVCD), which enables the measurement of CD spectra in the vacuum-ultraviolet region (140-200 nm),…”
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Cyclohelminthol X, a Hexa-Substituted Spirocyclopropane from Helminthosporium velutinum yone96: Structural Elucidation, Electronic Circular Dichroism Analysis, and Biological Properties by Tanaka, Shizuya, Honmura, Yuna, Uesugi, Shota, Fukushi, Eri, Tanaka, Kazuaki, Maeda, Hayato, Kimura, Ken-ichi, Nehira, Tatsuo, Hashimoto, Masaru

“…Helminthosporium velutinum yone96 produces cyclohelminthol X (1), a unique hexa-substituted spirocyclopropane. Although its molecular formula and NMR spectral…”
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Computationally Aided Absolute Stereochemical Determination of Enantioenriched Amines by Zhang, Jun, Gholami, Hadi, Ding, Xinliang, Chun, Minji, Vasileiou, Chrysoula, Nehira, Tatsuo, Borhan, Babak

“…A simple and efficient protocol for sensing the absolute stereochemistry and enantiomeric excess of chiral monoamines is reported. Preparation of the sample…”
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Crotofolane-Type Diterpenoids: Crotocascarins R–V, Rearranged Trinorcrotofolane: Crotocascarin δ and a Phorbol Derivative from the Leaves of Croton cascarilloides by Kawakami, Susumu, Inagaki, Masanori, Nishimura, Motohiro, Otsuka, Hideaki, Matsunami, Katsuyoshi, Nehira, Tatsuo, Shinzato, Takakazu

“…Five new crotofolanes, named crotocascarins R–V (1–5), one rearranged trinorcrotofolane, crotocascarin δ, and one phorbol derivative were isolated from the…”
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Tetradehydrohalicyclamine B, a new proteasome inhibitor from the marine sponge Acanthostrongylophora ingens by Kato, Hikaru, El-Desoky, Ahmed H., Takeishi, Yuya, Nehira, Tatsuo, Angkouw, Esther D., Mangindaan, Remy E.P., de Voogd, Nicole J., Tsukamoto, Sachiko

“…[Display omitted] •Tetradehydrohalicyclamine B (1) was isolated from Acanthostrongylophora ingens.•1 is the second example found to have a pyridinium ring in…”
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CaM kinase phosphatase (CaMKP/PPM1F/POPX2) is specifically inactivated through gallate-mediated protein carbonylation by Akizuki, Kazutoshi, Ishikawa, Shun, Obatake, Rika, Ozaki, Hana, Shimoda, Nao, Nehira, Tatsuo, Yamazaki, Takeshi, Kinumi, Tomoya, Osawa, Jin, Sueyoshi, Noriyuki, Kameshita, Isamu, Shigeri, Yasushi, Ishida, Atsuhiko

“…CaMK phosphatase (CaMKP/PPM1F/POPX2) is a Mn2+-dependent, calyculin A/okadaic acid-insensitive Ser/Thr protein phosphatase that belongs to the PPM family…”
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Dehydroxylation of stilbenoid oligomers: absolute configuration determination via comparison of experimental and theoretical electronic circular dichroic spectra by Ito, Tetsuro, Nehira, Tatsuo

“…Dehydroxylation of naturally occurring oligomeric resveratrol derivatives resulted in the formation of compounds with dramatically reduced principal stable…”
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Hydroxylated furanoditerpenoids from pupal cases produced by the bruchid beetle Sulcobruchus sauteri inside the seeds of Caesalpinia decapetala by Akihara, Yui, Kamikawa, Sayuri, Harauchi, Yui, Ohta, Emi, Nehira, Tatsuo, Ômura, Hisashi, Ohta, Shinji

“…Seven undescribed hydroxylated cassane-type furanoditerpenoids were isolated from pupal cases formed from the secretion/excretion of the larvae of the wild…”
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Petroquinones: trimeric and dimeric xestoquinone derivatives isolated from the marine sponge Petrosia alfiani by Tanokashira, Natsuki, Kukita, Sanako, Kato, Hikaru, Nehira, Tatsuo, Angkouw, Esther D., Mangindaan, Remy E.P., de Voogd, Nicole J., Tsukamoto, Sachiko

“…We isolated 16 new xestoquinone derivatives, including two trimers, six dimers, and four monomers with containing thiomorpholine 1,1-dioxide and…”
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Cassane diterpenoids from the roots of Caesalpinia decapetala var. japonica and structure revision of caesaljapin by Kamikawa, Sayuri, Oshimo, Shiori, Ohta, Emi, Nehira, Tatsuo, Ômura, Hisashi, Ohta, Shinji

“…Three diterpenoids (1–3) were isolated from the roots of Caesalpinia decapetala var. japonica and the structures were determined based on spectroscopic data as…”
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Structure elucidation of highly condensed stilbenoids: chiroptical properties and absolute configuration by Ito, Tetsuro, Ito, Hiromi, Nehira, Tatsuo, Sawa, Ryuich, Iinuma, Munekazu

“…We investigated the potential roles of the skeleton-based comparative study of electronic circular dichroism (ECD) spectra for an application of absolute…”
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Natural dolapyrrolidone: Isolation and absolute stereochemistry of a substructure of bioactive peptides by Murakami, Ayana, Hayashi, Jun‐ichi, Igawa, Kazunobu, Tsutsumi, Miki, Tomooka, Katsuhiko, Nagai, Hiroshi, Nehira, Tatsuo

“…During the course of our chemical analysis of the hydrophilic fractions from marine cyanobacterium Moorena producens, we have isolated natural dolapyrrolidone…”
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Reticulatins A and B and hyrtioreticulin F from the marine sponge Hyrtios reticulatus by Imada, Kumiko, Sakai, Eriko, Kato, Hikaru, Kawabata, Tetsuro, Yoshinaga, Sosuke, Nehira, Tatsuo, Terasawa, Hiroaki, Tsukamoto, Sachiko

“…Three new alkaloids, reticulatins A (1) and B (2) and hyrtioreticulin F (3), were isolated from the water-soluble fraction of an EtOH extract of the marine…”
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Computation-Assisted Structural Elucidation of Epoxyroussoeone and Epoxyroussoedione Isolated from Roussoella japanensis KT1651 by Honmura, Yuna, Takekawa, Hiroto, Tanaka, Kazuaki, Maeda, Hayato, Nehira, Tatsuo, Hehre, Warren, Hashimoto, Masaru

“…The structures of epoxyroussoenone (1) and epoxyroussoedione (3) isolated from a culture broth of Roussoella japanensis KT1651 were determined. Although NMR…”
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Two new secondary metabolites from a fungus of the genus Robillarda by Shimoyama, Takeo, Miyoshi, Mizuki, Nehira, Tatsuo, Motojima, Atsuko, Oikawa, Tsutomu, Laurence, Olivier, Igarashi, Yasuhiro

“…Two new compounds, robillafuran and (+)-robillapyrone, were isolated from the culture extract of a fungal strain of Robillarda along with (+)-monascuspyrone…”
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Roussoellols A and B, Tetracyclic Fusicoccanes from Roussoella hysterioides by Takekawa, Hiroto, Tanaka, Kazuaki, Fukushi, Eri, Matsuo, Koichi, Nehira, Tatsuo, Hashimoto, Masaru

“…The structures of the tetracyclic fusicoccanes roussoellols A (1) and B (2) from Roussoella hysterioides KT1651 are described. NMR spectroscopic analyses…”
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