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Enantioselective construction of nitrogen-substituted quaternary carbon centers adjacent to the carbonyl group in the cyclohexane ring: first asymmetric synthesis of anesthetic (S)-ketamine with high selectivity Yokoyama, Reiko Matsumoto, Satoshi Nomura, Satoshi Higaki, Takafumi Yokoyama, Takeshi Kiyooka, Syun-ichi The original publication is available at www.sciencedirect.com Asymmetric synthesis of (S)-ketamine Nitrogen-substituted quaternary carbon centers application/pdf Elsevier 2009-07-04 eng journal article http://hdl.handle.net/10126/3023 https://kochi.repo.nii.ac.jp/records/1879 10.1016/j.tet.2009.05.004 00404020 AA00861787 Tetrahedron 65 27 5181 5191 https://kochi.repo.nii.ac.jp/record/1879/files/Tetrahedron65275181Kiyooka.pdf application/pdf 404.2 kB 2018-04-20