論文 - 関　　千草

1. Catalytic efficiency of primary β-amino alcohols and primary α-amino amides in enantioselective reactions of isatins

   Ummareddy Venkata Subba Reddy, Bheemreddy Anusha, Marri Naveen Kumar, Raveendra Babu Kothapalli, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，Tetrahedron，162巻，(頁 134124 ～ )，2024年06月

   

2. Characterization of Ralstonia insidiosa C1 isolated from Alpine regions: Capability in polyhydroxyalkanoates degradation and production

   Young-Cheol Chang, M. Venkateswar Reddy, Hinako Suzuki, Takumi Terayama, Yasuteru Mawatari, Chigusa Seki, Omprakash Sarkar，Journal of Hazardous Materials，471巻，(頁 134348 ～ )，2024年04月

   

3. New boro amino amide organocatalysts for asymmetric cross aldol reaction of ketones with carbonyl compounds

   Zubeda Begum, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita and Hiroto Nakano，RSC Advances，13巻，2号，(頁 888 ～ 894)，2023年01月

   

4. Thiourea fused g-amino alcohol organocatalysts for asymmetric Mannich reaction of b-keto active methylene compounds with imines

   Miku Nomura, Zubeda Begum, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita and Hiroto Nakano，RSC Advances，2023巻，13号，(頁 3715 ～ 3722)，2023年01月

   

5. Catalytic Efficiency of Primary α-Amino Amides as Multifunctional Organocatalysts in Recent Asymmetric Organic Transformations

   Ummareddy Venkata Subba Reddy, Bheemreddy Anusha, Zubeda Begum, Chigusa Seki, Yuko Okuyama, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita and Hiroto Nakano，catalysts，12巻，12号，(頁 1674 ～ 1705)，2022年10月

   

6. Chemical analysis of amyloid β aggregation inhibitors derived from Geranium thunbergii

   Kenji Kubo, Hikaru Watanabe, Hiroyuki Kumeta, Tomoyasu Aizawa, Chigusa Seki, Hiroto Nakano, Kiyotaka Tokuraku, Koji Uwai，BIOORGANIC & MEDICINAL CHEMISTRY，68巻，(頁 116840 ～ )，2022年05月

   

7. New small gamma-turn type N-primary amino terminal tripeptide organocatalyst for solvent-free asymmetric aldol reaction of various ketones with aldehydes

   Rajkumar Thiyagarajan, Zubeda Begum, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，RSC Advances，11巻，61号，(頁 38925 ～ 38932)，2021年12月

   

8. Simple amino silyl ether organocatalyst for asymmetric hetero Diels–Alder reaction of isatins with enones

   Perumalsamy Parasuraman, Divakar Ganesan, Zubeda Begum, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，CHIRALITY，33巻，8号，(頁 454 ～ 464)，2021年08月

   

9. Simple primary β-amino alcohols as organocatalysts for the asymmetric Michael addition of β-keto esters to nitroalkenes

   Zubeda Begum, Haruka Sannabe, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita and Hiroto Nakano，RSC Advances，1巻，(頁 203 ～ 209)，2020年12月

   

10. Simple organocatalyst component system for asymmetric hetero Diels–Alder reaction of isatins with enones

    Perumalsamy Parasuraman, Zubeda Begum, Madhu Chennapuram, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita and Hiroto Nakano,，RSC Advances，10巻，(頁 17486 ～ 17491)，2020年05月

    

11. Sugar Based γ-Amino Alcohol Organocatalyst for Asymmetric Michael Addition of β-Keto Esters with Nitroolefins

    Divakar Ganesan, Madhu Chennapuram, Zubeda Begum, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Suguru Tokiwa, Mitsuhiro Takeshita, and Hiroto Nakano，Heterocycles，98巻，11号，(頁 1536 ～ 1545)，2019年11月

    

12. 2-Azanorbornane-based amino alcohol organocatalyst for asymmetric Michael reaction of beta-keto esters with nitroolefins

    Rei Togashi, Madhu Chennapuram, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，European Journal of Organic Chemistry，2019巻，24号，(頁 3882 ～ 3889)，2019年05月

    

13. Amino Amide Organocatalysts for Asymmetric Michael Addition of β-Keto Esters with β-Nitroolefins

    Isiaka A. Owolabi, Madhu Chennapuram, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，Bulletin of the chemical society of Japan，92巻，3号，(頁 696 ～ 701)，2019年01月

    

14. New Hybrid-type Squaramide-Fused Amino Alcohol Organocatalyst for Enantioselective Domino Michael Addition/Cyclization Reaction of Oxoindolines with Cyclic 1,3-Diketones

    Madhu Chennapuram, Isiaka Alade Owolabi, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita, and Hiroto Nakano，ACS Omega，3巻，9号，(頁 11718 ～ 11726)，2018年09月

    

15. A new type of amino amide organocatalyzed enantioselective crossed aldol reaction of ketones with aromatic aldehydes

    Isiaka A. Owolabi, U.V. Subba Reddy, Madhu Chennapuram, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，Tetrahedron，74巻，36号，(頁 4705 ～ 4711)，2018年09月

    

16. β-Amino Alcohol Organocatalysts for Asymmetric Additions

    Hiroto Nakano, Isiaka Alade Owolabi, Madhu Chennapuram, Yuko Okuyama, Eunsang Kwon, Chigusa Seki, Michio Tokiwa, and Mitsuhiro Takeshita，Heterocycles，97巻，2号，(頁 647 ～ 667)，2018年06月

    

17. Structure-activity relations of rosmarinic acid derivatives for the amyloid b aggregation inhibition and antioxidant properties

    Riho Taguch, Koki Hatayama, Tomohito Takahashi, Takafumi Hayashi, Yuki Sato, Daisuke Sato, Kiminori Ohta, Hiroto Nakano, Chigusa Seki, Yasuyuki Endo, Kiyotaka Tokuraku, Koji Uwai，European Journal of Medicinal Chemistry，138巻，(頁 1066 ～ 1075)，2017年09月

    

18. Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Diels–Alder Reactions of 3-Hydroxy-2-Pyridones with Maleimides

    Madhu Chennapuram, U. V. Subba Reddy, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita and Hiroto Nakano，European Journal of Organic Chemistry，2017巻，(頁 4633 ～ 4641)，2017年08月

    

19. A Diamino Alcohol Catalyzed Enantioselective Crossed Aldol Reaction of Acetaldehyde with Isatins – A Concise Total Synthesis of Antitumor Agents

    U. V. Subba Reddy, Madhu Chennapuram, Kento Seki, Chigusa Seki, Bheemreddy Anusha, Eunsang Kwon, Yuko Okuyama, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita, Hiroto Nakano，European Journal of Organic Chemistry，2017巻，(頁 3847 ～ 3885)，2017年07月

    

20. Hybrid-Type Squaramide-Fused Amino Alcohol Organocatalysts for Enantioselective Nitro-Aldol Reaction of Nitromethane with Isatins

    Madhu Chennapuram, U. V. Subba Reddy, Chigusa Seki, Yuko Okuyama, Eunsang Kwon, Koji Uwai, Michio Tokiwa, Mitsuhiro Takeshita and Hiroto Nakan，European Journal of Organic Chemistry，2017巻，(頁 1638 ～ 1646)，2017年03月