We describe herein the asymmetric total synthesis of sphingofungin E, which has potent immunosuppressive activity. Key steps include asymmetric desymmetrization by bromolactonization, stereocontrolled construction of four contiguous stereogenic centers through allylic C-H oxidation and epoxide ring opening, regioselective elongation of a dialdehyde, and Hofmann rearrangement by using PhI(OCOCF3)(2).
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Sankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, JapanSankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, Japan
Nakamura, T
Shiozaki, M
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Sankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, JapanSankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, Japan
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Univ Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, JapanUniv Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, Japan
Noda, Narumi
Nambu, Hisanori
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Univ Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, JapanUniv Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, Japan
Nambu, Hisanori
Fujiwara, Tomoya
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Univ Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, JapanUniv Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, Japan
Fujiwara, Tomoya
Yakura, Takayuki
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Univ Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, JapanUniv Toyama, Grad Sch Med & Pharmaceut Sci, Sugitani, Toyama 9300194, Japan
机构:
Sankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, JapanSankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, Japan
Nakamura, T
Shiozaki, M
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Sankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, JapanSankyo Co Ltd, Exploratory Chem Res Labs, Shinagawa Ku, Tokyo 1408710, Japan
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Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R ChinaChinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China
Liu, DG
Wang, B
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Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R ChinaChinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China
Wang, B
Lin, GQ
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Chinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R ChinaChinese Acad Sci, Shanghai Inst Organ Chem, Shanghai 200032, Peoples R China