??.z%R ?0?0?0?0 W?? ?? T ?]?S ?0?0?0 ?QHrt^ DOI URL ?SW???e "Oxidation of an Internal-Edge-Substituted [5]Helicene-Derived Phosphine Synchronously Enhances Circularly Polarized Luminescence" "Kazuteru Usui,* Nozomi Narita, Ryosuke Eto, Seika Suzuki, Atsushi Yokoo, Kosuke Yamamoto, Kazunobu Igawa, Naoko Iizuka, Yuki Mimura, Tomohiro Umeno, Shota Matsumoto, Masashi Hasegawa, Katsuhiko Tomooka, Yoshitane Imai,* Satoru Karasawa*" "Chem. Eur. J." "in press" 2022 10.1002/chem.202202922 https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202202922 "[Original Paper]" "Oxidation of an Internal-Edge-Substituted [5]Helicene-Derived Phosphine Synchronously Enhances Circularly Polarized Luminescence" "Kazuteru Usui,* Nozomi Narita, Ryosuke Eto, Seika Suzuki, Atsushi Yokoo, Kosuke Yamamoto, Kazunobu Igawa, Naoko Iizuka, Yuki Mimura, Tomohiro Umeno, Shota Matsumoto, Masashi Hasegawa, Katsuhiko Tomooka, Yoshitane Imai,* Satoru Karasawa*" "Chem. Eur. J." "in press" 2022 10.1002/chem.202202922 https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202202922 "[Original Paper]" "Chelate-free  turn-on -type fluorescence detection of trivalent metal ions" "Shota Matsumoto, Tomohiro Umeno, Noriko Suzuki, Kazuteru Usui, Masatoshi Kawahata, Satoru Karasawa*" "Chem. Commun." "in press" 2022 10.1039/D2CC04815A https://pubs.rsc.org/en/content/articlelanding/2022/cc/d2cc04815a "[Original Paper]" "Acid responsiveness of emissive morpholinyl aminoquinolines and their use for cell fluorescence imaging" "Yuri Fukumoto, Tomohiro Umeno, Hina Kuramochi, Koichi Hamada, Shota Matsumoto, Noriko Suzuki, Kazuteru Usui, Akihiro Mizutani, Satoru Karasawa*" "Organic & Biomolecular Chemistry" 20 4342-4351 2022 https://doi.org/10.1039/d2ob00546h http://pubs.rsc.org/en/content/articlepdf/2022/OB/D2OB00546H "[Original Paper]" "Development of Reversible Acid-Base Detection Reagents Based on Push-pull Type Aminonaphthyridine and Aminoquinoline Derivatives " "Shota Matumoto, Tomohiro Umeno, Kazuteru Usui, Satoru Karasawa*" "BUNSEKI KAGAKU" 71 119-131 2022 https://doi.org/10.2116/bunsekikagaku.71.119 https://www.jstage.jst.go.jp/article/bunsekikagaku/71/3/71_119/_pdf "[Original Paper]" "Oxidation of an Internal-Edge-Substituted [5]Helicene-Derived Phosphine Synchronously Enhances Circularly Polarized Luminescence" "Kazuteru Usui,* Nozomi Narita, Ryosuke Eto, Seika Suzuki, Atsushi Yokoo, Kosuke Yamamoto, Kazunobu Igawa, Naoko Iizuka, Yuki Mimura, Tomohiro Umeno, Shota Matsumoto, Masashi Hasegawa, Katsuhiko Tomooka, Yoshitane Imai,* Satoru Karasawa*" "Chem. Eur. J." "in press" 2022 10.1002/chem.202202922 https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/chem.202202922 "[Original Paper]" "Chelate-free  turn-on -type fluorescence detection of trivalent metal ions" "Shota Matsumoto, Tomohiro Umeno, Noriko Suzuki, Kazuteru Usui, Masatoshi Kawahata, Satoru Karasawa*" "Chem. Commun." "in press" 2022 10.1039/D2CC04815A https://pubs.rsc.org/en/content/articlelanding/2022/cc/d2cc04815a "[Original Paper]" "Acid responsiveness of emissive morpholinyl aminoquinolines and their use for cell fluorescence imaging" "Yuri Fukumoto, Tomohiro Umeno, Hina Kuramochi, Koichi Hamada, Shota Matsumoto, Noriko Suzuki, Kazuteru Usui, Akihiro Mizutani, Satoru Karasawa*" "Organic & Biomolecular Chemistry" 20 4342-4351 2022 https://doi.org/10.1039/d2ob00546h http://pubs.rsc.org/en/content/articlepdf/2022/OB/D2OB00546H "[Original Paper]" "Development of Reversible Acid-Base Detection Reagents Based on Push-pull Type Aminonaphthyridine and Aminoquinoline Derivatives " "Shota Matumoto, Tomohiro Umeno, Kazuteru Usui, Satoru Karasawa*" "BUNSEKI KAGAKU" 71 119-131 2022 https://doi.org/10.2116/bunsekikagaku.71.119 https://www.jstage.jst.go.jp/article/bunsekikagaku/71/3/71_119/_pdf "[Original Paper]" "Synthesis of CH2-linked ?-galactosylceramide and its glucose analogues through glycosyl radical-mediated direct C-glycosylation" "Yu Hidaka, Noriaki Kiya, Makoto Yoritate, Kazuteru Usui, Go Hirai " "Chem. Commun." "in press" 2020 10.1039/D0CC00785D https://pubs.rsc.org/en/content/articlelanding/2020/cc/d0cc00785d#!divAbstract "[Original Paper]" "Nuciferols A and B: Novel sesquineolignans from Cocos nucifera" "Marwa Elsbaey,* Bai Jie, Chiaki Tanaka, Hikaru Kato, Sachiko Tsukamoto, Kazuteru Usui, Go Hirai, Tomofumi Miyamoto" "Tetrahedron Lett." 60 150948 2019 10.1016/j.tetlet.2019.150948 https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000480664500011&DestApp=WOS_CPL "[Original Paper]" "Photophysical Properties of Emissive Pyrido[3,2-c]carbazoleDerivatives and Apoptosis Induction: Development towardsTheranostic Agents in Response to Light Stimulus" "Masaomi Sakuma, Yasufumi Fuchi,* Kazuteru Usui, and Satoru Karasawa*" "Chem. Asian J." 14 3938 2019 10.1002/asia.201901200 https://www.ncbi.nlm.nih.gov/pubmed/31560150 "[Original Paper]" "Fluorescence Properties and Exciplex Formation of EmissiveNaphthyridine Derivatives: Application as Sensors for Amines" "Junko Hirota, Kazuteru Usui, Yasufumi Fuchi, Masaomi Sakuma, Shota Matsumoto, Ryusuke Hagihara, Satoru Karasawa*" "Chem. Eur. J." 25 14943 2019 10.1002/chem.201903643 https://www.ncbi.nlm.nih.gov/pubmed/31512286 "[Original Paper] " "Effects of Substituents on the Properties of Metal-Free MRI Contrast Agents" "Ryoma ShiraishRyoma Shiraishi, Tomoyo Kaneko, Kazuteru Usui*, Tatsuya Naganuma, Naoko Iizuka, Kosuke Morishita, Shigeki Kobayashi, Yasufumi Fuchi, Yuta Matsuoka, Go Hirai, Ken-ichi Yamada, Satoru Karasawa*" "ACS Omega" 4 20715 2019 10.1021/acsomega.9b03003 https://pubs.acs.org/doi/abs/10.1021/acsomega.9b03003 "[Original Paper]" "Development of Turn-On Probes for Acids Triggered by Aromaticity Enhancement Using Tricyclic Amidine Derivatives" "Shota Matsumoto, Yasufumi Fuchi, Kazuteru Usui, Satoru Karasawa" "J. Org. Chem" 84 6612 2019 org/10.1021/acs.joc.9b00023 https://pubs.acs.org/doi/10.1021/acs.joc.9b00023 "[Original Paper]" "Synthesis of CH2-Linked α(1,6)-Disaccharide Analogues by α-Selective Radical Coupling C-Glycosylation" "Noriaki Kiya, Yu Hidaka, Kazuteru Usui, Go Hirai" "Org. Lett." 21 1588 2019 10.1021/acs.orglett.9b00133 https://pubs.acs.org/doi/full/10.1021/acs.orglett.9b00133 "[Original Paper]" "Sodium-Periodate-Mediated Harringtonine Derivatives and Their Antiproliferative Activity against HL-60 Acute Leukemia Cells" "Seiichi Sakamoto, Tomofumi Miyamoto, Kazuteru Usui, Hiroyuki Tanaka, Satoshi Morimoto" "J. Nat. Prod." 81 34 2018 10.1021/acs.jnatprod.7b00541 https://pubs.acs.org/doi/10.1021/acs.jnatprod.7b00541 "[Original Paper]" "Thienyl-Substituted α-Ketoamide: A Less Hydrophobic Reactive Group for Photo-Affinity Labeling" "Eisuke Ota, Kazuteru Usui, Kana Oonuma, Hiroyuki Koshino, Shigeru Nishiyama, Go Hirai, Mikiko Sodeoka" "ACS Chem. Biol." 13 876 2018 10.1021/acschembio.7b00988 https://pubs.acs.org/doi/10.1021/acschembio.7b00988 "[Original Paper]" "Internal Edge Substituted Coumarin Fused [6]Helicenes: Asymmetric Synthesis, Structural Features, and Control of Self Assembly" "Kazuteru Usui, Kosuke Yamamoto, Yuhei Ueno, Kazunobu Igawa, Ryusuke Hagihara, Toshinobu Masuda, Akio Ojida, Satoru Karasawa, Go Hirai, Hiroshi Suemune" "Chem. Eur. J." 24 14617 2018 10.1002/chem.201803270 https://onlinelibrary.wiley.com/doi/full/10.1002/chem.201803270 "[Original Paper]" "Self-Assembly Behavior of Emissive Urea Benzene Derivatives Enables Heat-Induced Accumulation in Tumor Tissue" "Takeru Araki, Shuhei Murayama, Kazuteru Usui, Takashi Shimada, Ichio Aoki, Satoru Karasawa" "Nano Lett." 17 2397 2017 10.1021/acs.nanolett.6b05371 http://pubs.acs.org/doi/abs/10.1021/acs.nanolett.6b05371 "[Original Paper]" "Sodium periodate-mediated conjugation of harringtonine enabling the production of a highly specific monoclonal antibody, and the development of a sensitive quantitative analysis method" "Seiichi Sakamoto, Gorawit Yusakul, Yumi Tsuneura, Waraporn Putalun, Kazuteru Usui, Tomofumi Miyamoto, Hiroyuki Tanaka, Satoshi Morimoto" Analyst 142 1140 2017 10.1039/C6AN02751B http://pubs.rsc.org/en/Content/ArticleLanding/2017/AN/C6AN02751B#!divAbstract "[Original Paper]" "Two-step transformation of p-anisolylaminoquinoline derivatives induced by conformation- and packing-dominated processes" "Ryusuke Hagihara, Kazuteru Usui, Satoru Karasawa" "Dye. Pigment." 143 401 2017 10.1016/j.dyepig.2017.04.063 http://www.sciencedirect.com/science/article/pii/S0143720817301833 "[Original Paper]" "Water-Proton Relaxivities of Radical Nanoparticles Self-Assembled via Hydration or Dehydration Processes" "Kosuke Morishita, Yuna Okamoto, Shuhei Murayama, Kazuteru Usui, Eriko Ohashi, Go Hirai, Ichio Aoki, Satoru Karasawa" Langmuir 33 7810 2017 10.1021/acs.langmuir.7b01126 http://pubs.acs.org/doi/abs/10.1021/acs.langmuir.7b01126 "[Original Paper]" "7-Hydroxy 3-methyleneisoindolin-1-one as a new ESIPT-fluorescent probe to monitor aqueous environments" "Yusuke Kimuro, Kazuteru Usui, Satoru Karasawa, Go Hirai, Mariko Aso" "Chem. Phar. Bull." 65 796 2017 10.1248/cpb.c17-00306 https://www.jstage.jst.go.jp/article/cpb/65/8/65_c17-00306/_article [Review] "Development of New Chiral Phosphine Ligands with Helical Environments and Their Application in Asymmetric Catalytic Reactions" "Kazuteru Usui" "YAKUGAKU ZASSHI" 137 11 2017 10.1248/yakushi.17-00151 https://www.jstage.jst.go.jp/article/yakushi/137/11/137_17-00151/_article/-char/ja/ "[Original Paper]" "Regioselective Photocyclizations of Di(quinolinyl)arylamines and Tri(quinolinyl)amine with Emission Color Changes and Photoreaction-Induced Self-Assemblies" "Satoru Karasawa, Jun-ichi Todo, Kazuteru Usui, Naomi Harada, Kenji Yoza, Hiroshi Suemune, Noboru Koga" "Chem. Eur. J." 22 7771 2016 10.1002/chem.201600514 http://onlinelibrary.wiley.com/doi/10.1002/chem.201600514/abstract "[Original Paper]" "Site-Specific Turn-On Fluorescent Labeling of DNA-Interacting Protein Using Oligodeoxynucleotides That Modify Lysines To Produce 5,6-Dimethoxy 3-Methyleneisoindolin-1-one" "Chiemi Gatanaga, Bo Yang, Yuka Inadomi, Kazuteru Usui, Chiyoe Ohta, Tsutomu Katayama, Hiroshi Suemune, Mariko Aso" "ACS Chem. Biol." 11 2216 2016 10.1021/acschembio.6b00090 http://pubs.acs.org