A racemic synthesis of azanoradamantane (+/-)-3 was accomplished via Yamamoto's MAD-catalyzed Diels-Alder protocol. Subsequently, a scalable asymmetric synthesis of azanoradamantane benzamide SC-52491 was carried out employing Helmchen's asymmetric Diels-Alder methodology to construct all four contiguous asymmetric centers with the correct relative stereochemistry and in 99.3% e.e. (C) 1999 Elsevier Science Ltd. All rights reserved.
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Department of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,JapanDepartment of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,Japan
Hiroki Morita
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Erito Mochiki
Nobuyuki Takahashi
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RaQualia Pharma Inc.,Research and Development,5-2 Taketoyo,Aichi 470-2341,JapanDepartment of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,Japan
Nobuyuki Takahashi
Kiyoshi Kawamura
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RaQualia Pharma Inc.,Research and Development,5-2 Taketoyo,Aichi 470-2341,JapanDepartment of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,Japan
Kiyoshi Kawamura
Akira Watanabe
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Department of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,JapanDepartment of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,Japan
Akira Watanabe
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Toshinaga Sutou
Atsushi Ogawa
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Department of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,JapanDepartment of General Surgical Science (Surgery 1),Gunma University,Graduate School of Medicine,Gunma 371-8511,Japan