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Papers - KATSUTA Ryo

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Synthesis and structure revision of wasulfisides: glucosyl disulfides isolated from wasabi Reviewed International journal

Kenji Kimura, Shinnosuke Wakamori, Ryo Katsuta*, Ken Ishigami

Tetrahedron 187 134900 2025.11

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier

DOI： https://doi.org/10.1016/j.tet.2025.134900

Formation of branched oligosaccharides during sake brewing via transglycosylation by Aspergillus oryzae α-glucosidases Reviewed International journal

Chihiro Honda, Maya Takehisa Kosuge, Ryo Katsuta, Asuka Yamada, Ayumi Yaguchi, Izumi Kobayashi, Mizuki Tanaka, Haruki Tanaka, Yuta Kanemoto, Katsuya Gomi, Masafumi Tokuoka*

Food Chemistry 493 ( 2 ) 145845 2025.08

Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier

DOI： 10.1016/j.foodchem.2025.145845

Concise synthesis of (±)-gomadalactone A Reviewed International journal

Ryosuke Ashizaki, Ryo Katsuta⁎, Shinnosuke Wakamori, Tomoo Nukada, Ken Ishigami

Tetrahedron Letters 163 155623 2025.06

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal) Publisher：Elsevier

DOI： 10.1016/j.tetlet.2025.155623

Identification of a novel target of sulforaphane: Sulforaphane binds to acyl-protein thioesterase 2 (APT2) and attenuates its palmitoylation Reviewed International journal

Manami Kodaka, Akito Kikuchi, Kotaro Kawahira, Haruhiko Kamada, Ryo Katsuta, Ken Ishigami, Tsukasa Suzuki, Yuji Yamamoto, Jun Inoue

Biochemical and Biophysical Research Communications 726 150244 2024.09

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1016/j.bbrc.2024.150244

Synthesis, growth inhibitory activity against tumor cells, and structure-activity relationship of CGK733 and its analogs Reviewed International journal

Yuta Inagaki, Kohki Hashimoto, Shinnosuke Wakamori, Ryo Katsuta, Arata Yajima, Daisuke Kaida, Ken Ishigami

Bioscience, Biotechnology, and Biochemistry 88 ( 7 ) 747 - 758 2024.06

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1093/bbb/zbae047

Advancement in structure elucidation of natural medium-sized lactones through synthesis and theoretical calculations Invited Reviewed International journal

Ryo Katsuta

Bioscience, Biotechnology, and Biochemistry 88 ( 3 ) 260 - 269 2024.02

Authorship：Lead author Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1093/bbb/zbad179

Divergent Synthesis of Stachyurin and Casuarinin Focusing on C-Glycosidic Bond Reactivity Reviewed

Chemistry – A European Journal 29 ( 41 ) e202301096 2023.07

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/chem.202301096

Chrysin 7-O-β-D-glucopyranoside increases hepatic low-density lipoprotein receptor expression through AMP-activated protein kinase activation Reviewed International journal

Naoki Kaname, Takahiro Fujimaki, Shotaro Horikoshi, Kaito Fujimura, Manami Kodaka, Shinnosuke Wakamori, Ryo Katsuta, Ken Ishigami, Tsukasa Suzuki, Yuji Yamamoto, Jun Inoue

FEBS Open Bio 13 ( 8 ) 1447 - 1458 2023.06

Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1002/2211-5463.13665

Divergent synthesis of ten-membered lactones: Aspinolides C, F, G, H, and I Reviewed International journal

Ryo Shimizu, Ryo Katsuta*, Keita Takeda, Shinnosuke Wakamori, Shigefumi Kuwahara, Tomoo Nukada, Ken Ishigami

Tetrahedron 139 133449 2023.06

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1016/j.tet.2023.133449

Synthesis and DFT-NMR-guided structure revision of cremenolide Reviewed International journal

Keita Takeda, Ryo Katsuta*, Arata Yajima, Ken Ishigami, Shigefumi Kuwahara, Tomoo Nukada

Natural Product Research 37 ( 9 ) 1577 - 1582 2023.05

Authorship：Corresponding author Language：English Publishing type：Research paper (scientific journal)

植物成長促進活性と抗植物病原菌活性を併せ持つTrichoderma cremeum由来の10員環ラクトン化合物cremenolideについて、NMRの再解析と量子化学計算および合成により構造を検証した。この結果当初提唱された構造は誤りであり、正しい構造を決定することに成功した。またcremenolideの初の全合成に成功した。

DOI： 10.1080/14786419.2021.2023867

Adjacent double branches exist in the branching structure of starch Reviewed International journal

Chihiro Honda, Ayaka Kaneko, Ryo Katsuta, Masafumi Tokuoka

Carbohydrate Research 519 108628 - 108632 2022.09

Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1016/j.carres.2022.108628

Sulforaphane suppresses the activity of sterol regulatory element-binding proteins (SREBPs) by promoting SREBP precursor degradation Reviewed International journal

Shingo Miyata, Manami Kodaka, Akito Kikuchi, Yuki Matsunaga, Kenta Shoji, Yen-Chou Kuan, Masamori Iwase, Keita Takeda, Ryo Katsuta, Ken Ishigami, Yu Matsumoto, Tsukasa Suzuki, Yuji Yamamoto, Ryuichiro Sato, Jun Inoue

Scientific Reports 12 8715 2022.05

Language：English Publishing type：Research paper (scientific journal)

DOI： https://doi.org/10.1038/s41598-022-12347-6

Practical synthesis of aromatic bisabolanes: Synthesis of 1,3,5- bisabolatrien-7-ol, peniciaculin A and B, and hydroxysydonic acid Reviewed International journal

Arata Yajima, Izumi Shirakawa, Nanami Shiotani, Kazuya Ueda, Hazuki Murakawa, Tatsuo Saito, Ryo Katsuta, Ken Ishigami

Tetrahedron 92 132253 2021.07

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1016/j.tet.2021.132253

Studies on analogs of DAMASCENOLIDE^TM: Part 4. Synthesis and odor evaluation of sulfur-containing analogs of DAMASCENOLIDE^TM Reviewed International journal

Yamato Miyazawa, Kenji Kawaguchi, Ryo Katsuta, Tomoo Nukada, Ken Ishigami

Bioscience, Biotechnology, and Biochemistry 85 ( 6 ) 1357 - 1363 2021.06

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1093/bbb/zbab032

Identification of biosynthetic intermediates for the mating hormone α2 of the plant pathogen Phytophthor Reviewed International journal

Suguru Ariyoshi, Yusuke Imazu, Ryuji Ohguri, Ryo Katsuta, Arata Yajima, Takahiro Shibata, Makoto Ojika

Bioscience, Biotechnology, and Biochemistry 85 ( 8 ) 1802 - 1808 2021.05

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1093/bbb/zbab098

Sulfoquinovosylglyceryl ether, a new group of ether lipids from lake ball-forming green alga Aegagropilopsis moravica (family Pithophoraceae) Reviewed International journal

Naoya Oku, Atsumi Hasada, Kenji Kimura, Hideharu Honoki, Ryo Katsuta, Arata Yajima, Tomoo Nukada, Ken Ishigami,* Yasuhiro Igarashi*

Chemistry An Asian Journal 16 1493 - 1498 2021.05

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1002/asia.202100278

Studies on analogs of DAMASCENOLIDE^TM: Part 3. Synthesis and odor evaluation of dimethylated, cyclopropanated, and other analogs of DAMASCENOLIDE^TM Reviewed

Yamato Miyazawa, Kenji Kawaguchi, Ryo Katsuta, Tomoo Nukada, Ken Ishigami

Bioscience, Biotechnology, and Biochemistry 85 ( 4 ) 756 - 764 2021.04

Language：English Publishing type：Research paper (scientific journal)

DOI： 10.1093/bbb/zbaa103

Synthesis and Determination of Absolute Configuration of Zealexin A1, a Sesquiterpenoid Phytoalexin from Zea mays Reviewed

Arata Yajima, Mikaho Shimura, Tatsuo Saito, Ryo Katsuta, Ken Ishigami, Alisa Huffaker, Eric A. Schmelz

European Journal of Organic Chemistry 2021 1174 - 1178 2021.02

Language：English Publishing type：Research paper (scientific journal)

トウモロコシが生産するファイトアレキシンであるZealexin A1を合成し絶対立体配置を決定した。

DOI： https://doi.org/10.1002/ejoc.202001596

Disproof of the Proposed Structures of Bradyoxetin, a Putative Bradyrhizobium japonicum Signaling Molecule, and HMCP, a Putative Ralstonia solanacearum Quorum-Sensing Molecule Reviewed

Arata Yajima*, Ryo Katsuta, Mikaho Shimura, Ayaka Yoshihara, Tatsuo Saito, Ken Ishigami, and Kenji Kai*

Journal of Natural Products 84 495 - 802 2021.01

Language：English Publishing type：Research paper (scientific journal)

微生物のクオラムセンシングフェロモン候補物質として報告された、bradyoxecinおよびHMCPについて部分構造の合成および理論化学計算により構造の誤りを指摘した。このうちbradyoxecinとして報告された化合物はクロラムフェニコールであることを特定した。

DOI： 10.1021/acs.jnatprod.0c01369

Novel glucoamylase-resistant gluco-oligosaccharides with adjacent α-1, 6 branches at the non-reducing end discovered in Japanese rice wine, sake Reviewed International journal

Chihiro Honda, Ryo Katsuta, Mariko Yamada, Yusuke Kojima, Ayane Mamiya, Nanako Okada, Takuya Kawamura, Akira Totsuka, Hitoshi Shindo, Masaru Hosaka, Nukada Tomoo, Masafumi Tokuoka

Carbohydrate Polymers 251 116993 - 117004 2021.01

Language：English Publishing type：Research paper (scientific journal)

清酒中に含まれるオリゴ糖の分離、精製および構造の解析を行った。この結果新規化合物として重合度６および７のオリゴ糖各一種と重合度８のオリゴ糖２種を見出した。構造は質量分析(MS)および各種１次元および２次元核磁気共鳴分光法(NMR)を用いて決定した。

DOI： 10.1016/j.carbpol.2020.116993

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Papers - KATSUTA Ryo